>>> UPDATE 2019: The new version of Edge now fixes this.
EDGE 15 from Windows 10 Creator’s Update still has not fixed this problem, even as gaming monitors begin to proliferate (FreeSync, GSYNC, 120/144/240Hz, etc) — there is now over a hundred models available when added together.
Specific members of Chromium & FireFox teams purchased 120Hz+ monitors and fixed their browsers years ago, as confirmed via their BugZilla tracking systems. This is a W3C standard “requestAnimationFrame”.
We wonder why Microsoft has not caught up yet on this W3C standard.
UPDATE: Mark Rejhon, with prior industry standards writing experience, has submitted a suggested modification to W3C HTML 5.2 DRAFT 8 based on industry feedback.