Higher accuracy

Could you calculate the ticks in another way that isn't based on a interval that drift off by heavy js execution and/or suppeded timers in background tabs?

the nr of ticks could be calculated based on a clock rather then a inaccurate interval timer

Review the speedometer JavaScript implementation to find where tick timing is calculated and how the current interval is used. The issue is done when tick counts are derived from a clock so delayed execution or background-tab timers do not cause timing drift.

Written by the indexing model from the issue text.