diff --git a/src/tests/frontend/specs/responsiveness.js b/src/tests/frontend/specs/responsiveness.js
deleted file mode 100644
index ec63faa10..000000000
--- a/src/tests/frontend/specs/responsiveness.js
+++ /dev/null
@@ -1,91 +0,0 @@
-'use strict';
-
-// Test for https://github.com/ether/etherpad-lite/issues/1763
-
-// This test fails in Opera, IE and Safari
-// Opera fails due to a weird way of handling the order of execution,
-// yet actual performance seems fine
-// Safari fails due the delay being too great yet the actual performance seems fine
-// Firefox might panic that the script is taking too long so will fail
-// IE will fail due to running out of memory as it can't fit 2M chars in memory.
-
-// Just FYI Google Docs crashes on large docs whilst trying to Save,
-// it's likely the limitations we are
-// experiencing are more to do with browser limitations than improper implementation.
-// A ueber fix for this would be to have a separate lower cpu priority
-// thread that handles operations that aren't
-// visible to the user.
-
-// Adapted from John McLear's original test case.
-
-xdescribe('Responsiveness of Editor', function () {
-  // create a new pad before each test run
-  beforeEach(function (cb) {
-    helper.newPad(cb);
-    this.timeout(6000);
-  });
-  // JM commented out on 8th Sep 2020 for a release, after release this needs uncommenting
-  // And the test needs to be fixed to work in Firefox 52 on Windows 7.
-  // I am not sure why it fails on this specific platform
-  // The errors show this.timeout... then crash the browser but
-  // I am sure something is actually causing the stack trace and
-  // I just need to narrow down what, offers to help accepted.
-  it('Fast response to keypress in pad with large amount of contents', function (done) {
-    // skip on Windows Firefox 52.0
-    if (window.bowser &&
-        window.bowser.windows && window.bowser.firefox && window.bowser.version === '52.0') {
-      this.skip();
-    }
-    const inner$ = helper.padInner$;
-    const chars = '0000000000'; // row of placeholder chars
-    const amount = 200000; // number of blocks of chars we will insert
-    const length = (amount * (chars.length) + 1); // include a counter for each space
-    let text = ''; // the text we're gonna insert
-    this.timeout(amount * 150); // Changed from 100 to 150 to allow Mac OSX Safari to be slow.
-
-    // get keys to send
-    const keyMultiplier = 10; // multiplier * 10 == total number of key events
-    let keysToSend = '';
-    for (let i = 0; i <= keyMultiplier; i++) {
-      keysToSend += chars;
-    }
-
-    const textElement = inner$('div');
-    textElement.sendkeys('{selectall}'); // select all
-    textElement.sendkeys('{del}'); // clear the pad text
-
-    for (let i = 0; i <= amount; i++) {
-      text = `${text + chars} `; // add the chars and space to the text contents
-    }
-    inner$('div').first().text(text); // Put the text contents into the pad
-
-    // Wait for the new contents to be on the pad
-    helper.waitFor(() => inner$('div').text().length > length).done(() => {
-      // has the text changed?
-      expect(inner$('div').text().length).to.be.greaterThan(length);
-      const start = Date.now(); // get the start time
-
-      // send some new text to the screen (ensure all 3 key events are sent)
-      const el = inner$('div').first();
-      for (let i = 0; i < keysToSend.length; ++i) {
-        const x = keysToSend.charCodeAt(i);
-        ['keyup', 'keypress', 'keydown'].forEach((type) => {
-          const e = new $.Event(type);
-          e.keyCode = x;
-          el.trigger(e);
-        });
-      }
-
-      helper.waitFor(() => { // Wait for the ability to process
-        const el = inner$('body');
-        if (el[0].textContent.length > amount) return true;
-      }).done(() => {
-        const end = Date.now(); // get the current time
-        const delay = end - start; // get the delay as the current time minus the start time
-
-        expect(delay).to.be.below(600);
-        done();
-      }, 5000);
-    }, 10000);
-  });
-});