diff --git a/app/controllers/User.scala b/app/controllers/User.scala
index 270f4ccaa8..67e9875f15 100644
--- a/app/controllers/User.scala
+++ b/app/controllers/User.scala
@@ -392,12 +392,12 @@ object User extends LilaController {
           }
           ratingChart <- Env.history.ratingChartApi.apply(u)
           _ <- Env.user.lightUserApi preloadMany { u.id :: perfStat.userIds.map(_.value) }
-          data = Env.perfStat.jsonView(u, perfStat, ranks get perfType, percentile)
           response <- negotiate(
-            html = Ok(html.user.perfStat(u, ranks, perfType, percentile, perfStat, data, ratingChart)).fuccess,
+            html = Ok(html.user.perfStat(u, ranks, perfType, percentile, perfStat, ratingChart)).fuccess,
             api = _ => getBool("graph").?? {
               Env.history.ratingChartApi.singlePerf(u, perfType).map(_.some)
             } map {
+              val data = Env.perfStat.jsonView(u, perfStat, ranks get perfType, percentile)
               _.fold(data) { graph => data + ("graph" -> graph) }
             } map { Ok(_) }
           )
diff --git a/app/views/user/perfStat.scala b/app/views/user/perfStat.scala
index 3e87770cbc..837b31b793 100644
--- a/app/views/user/perfStat.scala
+++ b/app/views/user/perfStat.scala
@@ -18,7 +18,6 @@ object perfStat {
     perfType: lila.rating.PerfType,
     percentile: Option[Double],
     stat: PerfStat,
-    data: play.api.libs.json.JsObject,
     ratingChart: Option[String]
   )(implicit ctx: Context) = views.html.base.layout(
     title = s"${u.username} ${perfType.name} stats",
@@ -30,13 +29,7 @@ object perfStat {
           jsTag("chart/ratingHistory.js"),
           embedJsUnsafe(s"lichess.ratingHistoryChart($rc,'${perfType.name}');")
         )
-      },
-      jsAt(s"compiled/lichess.perfStat${isProd ?? (".min")}.js"),
-      embedJsUnsafe(s"""$$(function() {
-if (false) LichessPerfStat(document.querySelector('.perf-stat__content'), {
-data: ${safeJsonValue(data)}
-});
-});""")
+      }
     ),
     moreCss = cssTag("perf-stat")
   ) {
diff --git a/package.json b/package.json
index 92550e55cb..2dd0f4e93c 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,6 @@
     "ui/learn",
     "ui/lobby",
     "ui/notify",
-    "ui/perfStat",
     "ui/puzzle",
     "ui/round",
     "ui/simul",
diff --git a/ui/build b/ui/build
index 933f0fbe9d..3bf3f4a90b 100755
--- a/ui/build
+++ b/ui/build
@@ -13,7 +13,7 @@ mkdir -p public/compiled
 
 ts_apps1="common chess"
 ts_apps2="ceval game tree chat nvui"
-apps="site chat cli challenge notify learn insight editor puzzle round analyse lobby tournament tournamentSchedule tournamentCalendar simul perfStat dasher speech palantir"
+apps="site chat cli challenge notify learn insight editor puzzle round analyse lobby tournament tournamentSchedule tournamentCalendar simul dasher speech palantir"
 
 if [ $mode == "upgrade" ]; then
   yarn upgrade --non-interactive
diff --git a/ui/perfStat/gulpfile.js b/ui/perfStat/gulpfile.js
deleted file mode 100644
index 7de95fc088..0000000000
--- a/ui/perfStat/gulpfile.js
+++ /dev/null
@@ -1,3 +0,0 @@
-const lilaGulp = require('../gulp/jsProject.js');
-
-lilaGulp('LichessPerfStat', 'lichess.perfStat', __dirname);
diff --git a/ui/perfStat/package.json b/ui/perfStat/package.json
deleted file mode 100644
index 1843da4dcf..0000000000
--- a/ui/perfStat/package.json
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  "name": "perfStat",
-  "version": "1.0.0",
-  "description": "lichess.org chess performance statistics",
-  "main": "src/main.js",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/ornicar/lila"
-  },
-  "keywords": [
-    "chess",
-    "lichess",
-    "performance",
-    "statistic"
-  ],
-  "author": "ornicar",
-  "license": "AGPL-3.0",
-  "bugs": {
-    "url": "https://github.com/ornicar/lila/issues"
-  },
-  "homepage": "https://github.com/ornicar/lila",
-  "devDependencies": {
-    "browserify": "^16",
-    "gulp": "^4",
-    "gulp-terser": "^1",
-    "gulp-size": "^3",
-    "fancy-log": "^1",
-    "vinyl-source-stream": "^2",
-    "vinyl-buffer": "^1",
-    "watchify": "^3"
-  },
-  "dependencies": {
-    "mithril": "github:ornicar/mithril.js#lila-1",
-    "numeral": "^1.5"
-  }
-}
diff --git a/ui/perfStat/src/counter.js b/ui/perfStat/src/counter.js
deleted file mode 100644
index bd9b09352b..0000000000
--- a/ui/perfStat/src/counter.js
+++ /dev/null
@@ -1,71 +0,0 @@
-var m = require('mithril');
-var util = require('./util');
-
-function percent(x, y) {
-  if (y === 0) return 0;
-  return Math.round(x * 100 / y);
-}
-
-module.exports = function(d) {
-  var c = d.stat.count;
-  var per = function(x, y) {
-    return percent(x, y || c.all) + '%';
-  };
-  return [
-    m('div', m('table', m('tbody', [
-      m('tr', [
-        m('th', 'Total games'),
-        m('td', c.all),
-        m('td'),
-      ]),
-      m('tr.full', [
-        m('th', 'Rated games'),
-        m('td', c.rated),
-        m('td', per(c.rated)),
-      ]),
-      m('tr.full', [
-        m('th', 'Tournament games'),
-        m('td', c.tour),
-        m('td', per(c.tour)),
-      ]),
-      m('tr.full', [
-        m('th', 'Berserked games'),
-        m('td', c.berserk),
-        m('td', per(c.berserk, c.tour)),
-      ]),
-      c.seconds ? m('tr.full', [
-        m('th', 'Time spent playing'),
-        m('td[colspan=2]', util.formatSeconds(c.seconds, 'short'))
-      ]) : null
-    ]))),
-    m('div', m('table', m('tbody', [
-      m('tr', [
-        m('th', 'Average opponent'),
-        m('td', c.opAvg),
-        m('td')
-      ]),
-      m('tr.full', [
-        m('th', 'Victories'),
-        m('td', util.green(c.win)),
-        m('td', util.green(per(c.win)))
-      ]),
-      m('tr.full', [
-        m('th', 'Draws'),
-        m('td', c.draw),
-        m('td', per(c.draw))
-      ]),
-      m('tr.full', [
-        m('th', 'Defeats'),
-        m('td', util.red(c.loss)),
-        m('td', util.red(per(c.loss)))
-      ]),
-      m('tr.full', (function(color) {
-        return [
-          m('th', 'Disconnections'),
-          m('td', color(c.disconnects)),
-          m('td', color(per(c.disconnects, c.loss)))
-        ];
-      })(percent(c.disconnects, c.loss) >= 15 ? util.red : util.identity))
-    ])))
-  ];
-};
diff --git a/ui/perfStat/src/glicko.js b/ui/perfStat/src/glicko.js
deleted file mode 100644
index dbb3e020f5..0000000000
--- a/ui/perfStat/src/glicko.js
+++ /dev/null
@@ -1,47 +0,0 @@
-var m = require('mithril');
-
-function provisional() {
-  return m('span', {
-    title: 'Not enough rated games have been played to establish a reliable rating.'
-  }, '(provisional)');
-}
-
-function percentile(d) {
-  return d.percentile === 0 ? '' : [
-    ' Better than ',
-    m('a', {
-      href: '/stat/rating/distribution/' + d.stat.perfType.key
-    }, [
-      m('strong', d.percentile + '%'),
-      ' of ' + d.stat.perfType.name + ' players.'
-    ])
-  ];
-}
-
-function progress(p) {
-  if (p > 0) return m('green[data-icon=N]', p);
-  else if (p < 0) return m('red[data-icon=M]', -p);
-}
-
-module.exports = function(d) {
-  return [
-    m('h2', [
-      'Rating: ',
-      m('strong', {
-        title: 'Yes, ratings have decimal accuracy.'
-      }, d.perf.glicko.rating),
-      '. ',
-      m('span.details', d.perf.glicko.provisional ? provisional() : percentile(d))
-    ]),
-    m('p', [
-      'Progression over the last twelve games: ',
-      m('span.progress', progress(d.perf.progress) || 'none'),
-      '. ',
-      'Rating deviation: ',
-      m('strong', {
-        title: 'Lower value means the rating is more stable. Above 110, the rating is considered provisional.'
-      }, d.perf.glicko.deviation),
-      '. '
-    ])
-  ];
-};
diff --git a/ui/perfStat/src/highlow.js b/ui/perfStat/src/highlow.js
deleted file mode 100644
index 904a109b5a..0000000000
--- a/ui/perfStat/src/highlow.js
+++ /dev/null
@@ -1,21 +0,0 @@
-var m = require('mithril');
-var util = require('./util');
-
-function ratingAt(title, opt, color) {
-  return util.fMap(opt, function(r) {
-    return [
-      m('h2', [title + ': ', m('strong', color(r.int))]),
-      util.gameLink(r.gameId, util.date(r.at))
-    ];
-  }, [
-    m('h2', title + ': '),
-    m('span', util.noData)
-  ]);
-}
-
-module.exports = function(d) {
-  return [
-    m('div', ratingAt('Highest rating', d.stat.highest, util.green)),
-    m('div', ratingAt('Lowest rating', d.stat.lowest, util.red))
-  ];
-};
diff --git a/ui/perfStat/src/main.js b/ui/perfStat/src/main.js
deleted file mode 100644
index 00083ee25e..0000000000
--- a/ui/perfStat/src/main.js
+++ /dev/null
@@ -1,13 +0,0 @@
-var m = require('mithril');
-
-module.exports = function(element, opts) {
-
-  m.module(element, {
-    controller: function() {
-      return {
-        data: opts.data
-      };
-    },
-    view: require('./view')
-  });
-};
diff --git a/ui/perfStat/src/playStreak.js b/ui/perfStat/src/playStreak.js
deleted file mode 100644
index 3a59a2f481..0000000000
--- a/ui/perfStat/src/playStreak.js
+++ /dev/null
@@ -1,49 +0,0 @@
-var m = require('mithril');
-var util = require('./util');
-
-function streak(s, title, display) {
-  return m('div.streak', [
-    m('h3', [
-      title + ': ',
-      display(s.v)
-    ]),
-    util.fromTo(s)
-  ]);
-}
-
-function streaks(s, display) {
-  return m('div.split', [
-    m('div', streak(s.max, 'Longest streak', display)),
-    m('div', streak(s.cur, 'Current streak', display))
-  ]);
-}
-
-var lessThan = 'Less than one hour between games.';
-
-module.exports = {
-  nb: function(d) {
-    return util.fMap(d.stat.playStreak.nb, function(s) {
-      return [
-        m('h2', m('span', {
-          title: lessThan
-        }, 'Games played in a row')),
-        streaks(s, function(v) {
-          return v ? [
-            m('strong', v),
-            ' game' + (v > 1 ? 's' : '')
-          ] : 'none';
-        })
-      ];
-    });
-  },
-  time: function(d) {
-    return util.fMap(d.stat.playStreak.time, function(s) {
-      return [
-        m('h2', m('span', {
-          title: lessThan
-        }, 'Max time spent playing')),
-        streaks(s, util.formatSeconds)
-      ];
-    });
-  }
-};
diff --git a/ui/perfStat/src/result.js b/ui/perfStat/src/result.js
deleted file mode 100644
index f76e2bfac7..0000000000
--- a/ui/perfStat/src/result.js
+++ /dev/null
@@ -1,21 +0,0 @@
-var m = require('mithril');
-var util = require('./util');
-
-function resultTable(results, title) {
-  return m('table', [
-    m('thead', m('tr', m('th[colspan=2]', m('h2', title)))),
-    m('tbody', results.map(function(r) {
-      return m('tr', [
-        m('td', util.showUser(r.opId, r.opInt)),
-        m('td', util.gameLink(r.gameId, util.date(r.at)))
-      ]);
-    }))
-  ]);
-}
-
-module.exports = function(d) {
-  return [
-    m('div', resultTable(d.stat.bestWins.results, 'Best rated victories')),
-    m('div', resultTable(d.stat.worstLosses.results, 'Worst rated defeats'))
-  ];
-};
diff --git a/ui/perfStat/src/resultStreak.js b/ui/perfStat/src/resultStreak.js
deleted file mode 100644
index c72938cfa7..0000000000
--- a/ui/perfStat/src/resultStreak.js
+++ /dev/null
@@ -1,37 +0,0 @@
-var m = require('mithril');
-var util = require('./util');
-
-function streak(s, title, color) {
-  return m('div.streak', [
-    m('h3', [
-      title + ': ',
-      s.v > 0 ? color([
-        m('strong', s.v),
-        ' game' + (s.v > 1 ? 's' : '')
-      ]) : 'none'
-    ]),
-    util.fromTo(s)
-  ]);
-}
-
-function streaks(color) {
-  return function(s) {
-    return [
-      streak(s.max, 'Longest', color),
-      streak(s.cur, 'Current', color)
-    ];
-  };
-}
-
-module.exports = function(d) {
-  return [
-    m('div', [
-      m('h2', 'Winning streak'),
-      util.fMap(d.stat.resultStreak.win, streaks(util.green), util.noData)
-    ]),
-    m('div', [
-      m('h2', 'Losing streak'),
-      util.fMap(d.stat.resultStreak.loss, streaks(util.red), util.noData)
-    ])
-  ];
-};
diff --git a/ui/perfStat/src/util.js b/ui/perfStat/src/util.js
deleted file mode 100644
index df4efdeb53..0000000000
--- a/ui/perfStat/src/util.js
+++ /dev/null
@@ -1,68 +0,0 @@
-var m = require('mithril');
-
-function fMap(v, f, orDefault) {
-  return v ? f(v) : (orDefault || null);
-}
-
-function gameLink(id, content) {
-  return m('a', {
-    class: 'glpt',
-    href: '/' + id
-  }, content);
-}
-
-function absDate(d) {
-  return m('time', window.lichess.timeago.absolute(d));
-}
-
-function fromTo(s) {
-  return fMap(s.from, function(r) {
-    return [
-      'from ',
-      gameLink(r.gameId, absDate(r.at)),
-      ' to ',
-      fMap(s.to, function(r) {
-        return gameLink(r.gameId, absDate(r.at));
-      }, 'now')
-    ];
-  }, m.trust('&nbsp;'));
-}
-
-module.exports = {
-  fMap: fMap,
-  gameLink: gameLink,
-  date: absDate,
-  showUser: function(u, rating) {
-    return m('a', {
-      class: 'ulpt',
-      href: '/@/' + u.name
-    }, (u.title ? (u.title + ' ') : '') + u.name + ' (' + rating + ')');
-  },
-  noData: 'Not enough games played.',
-  fromTo: fromTo,
-  streaks: function(s, f) {
-    return [
-      m('div.streak', [
-        m('h3', 'Longest: '), f(s.max)
-      ]),
-      m('div.streak', [
-        m('h3', 'Current streak'), f(s.cur)
-      ])
-    ];
-  },
-  green: function(v) {
-    return m('green', v);
-  },
-  red: function(v) {
-    return m('red', v);
-  },
-  identity: function(v) {
-    return v;
-  },
-  formatSeconds: function(s, format) {
-    var hours = Math.floor(s / 3600);
-    var minutes = Math.floor((s % 3600) / 60);
-    if (format === 'short') return hours + 'h, ' + minutes + 'm';
-    return hours + ' hours, ' + minutes + ' minutes';
-  }
-};
diff --git a/ui/perfStat/src/view.js b/ui/perfStat/src/view.js
deleted file mode 100644
index ce17a595e9..0000000000
--- a/ui/perfStat/src/view.js
+++ /dev/null
@@ -1,16 +0,0 @@
-var m = require('mithril');
-
-module.exports = function(ctrl) {
-  var d = ctrl.data;
-  return m('div', {
-    config: lichess.powertip.manualGameIn
-  }, [
-    m('section.glicko', require('./glicko')(d)),
-    m('section.counter.split', require('./counter')(d)),
-    m('section.highlow.split', require('./highlow')(d)),
-    m('section.resultStreak.split', require('./resultStreak')(d)),
-    m('section.result.split', require('./result')(d)),
-    m('section.playStreak', require('./playStreak').nb(d)),
-    m('section.playStreak', require('./playStreak').time(d))
-  ]);
-};
diff --git a/ui/perfStat/css/_perf-stat.scss b/ui/site/css/_perf-stat.scss
similarity index 100%
rename from ui/perfStat/css/_perf-stat.scss
rename to ui/site/css/_perf-stat.scss
diff --git a/ui/perfStat/css/build/_perf-stat.scss b/ui/site/css/build/_perf-stat.scss
similarity index 100%
rename from ui/perfStat/css/build/_perf-stat.scss
rename to ui/site/css/build/_perf-stat.scss
diff --git a/ui/perfStat/css/build/perf-stat.dark.scss b/ui/site/css/build/perf-stat.dark.scss
similarity index 100%
rename from ui/perfStat/css/build/perf-stat.dark.scss
rename to ui/site/css/build/perf-stat.dark.scss
diff --git a/ui/perfStat/css/build/perf-stat.light.scss b/ui/site/css/build/perf-stat.light.scss
similarity index 100%
rename from ui/perfStat/css/build/perf-stat.light.scss
rename to ui/site/css/build/perf-stat.light.scss
diff --git a/ui/perfStat/css/build/perf-stat.transp.scss b/ui/site/css/build/perf-stat.transp.scss
similarity index 100%
rename from ui/perfStat/css/build/perf-stat.transp.scss
rename to ui/site/css/build/perf-stat.transp.scss