Hevipelle's Antimatter Dimensions swapped from decimal.js to break_infinity.js. Once the update is out, I will provide the devs of these two incremental games also swap for that sick performance gainz.
AD script time improved by 4.5x after swapping from decimal.js to break_infinity.js. This could be your incremental game:

EDIT: Don't know what Idle Bouncer uses, can check that game too
EDIT 2: Apparently Trimps uses decimal.js?! Does that game even go above 1.78e308? EDIT 3: It uses it just to make it so breeding times don't flip out when you have an extremely small or large amount of Trimps.