I’ve done number counters effectively by pre-rendering a 0 to 9 count. Loop the prerender a bunch of times. Layout 7 of the prerenders side-by-side in a comp, then time stretch each to 10% of the one to its left. i.e. The one on the far left 100%, 2nd from left 10%, 3rd from left 1%, 4th 0.1%, etc.