Drawing practice clock is slowed

Is anyone else having an issue with the timer during practice/class sessions? It often ticks down twice as slow as it should, with one second on the clock lasting for two seconds. It usually fixes itself when pausing and resuming the timer, but still it's cumbersome during practice sessions when some of the 30 second drawings last for 30 seconds and others last for 60. Is there a fix for this?

This is the first report I've had of this. What browser and device do you use? And do you run with any browser plugins?

Dell Inspiron 7400 with Windows 11 Home, typically using Microsoft Edge with McAfee Web Advisor.