When the Cart Assembler is sitting idle doing nothing, it's taking up server ticks.

StevesCarts-1.12.2-2.4.17.88

I can't get that amount of tick usage but I've identified a part that takes some time.
It checks if it can refill fuel every tick and the culprit is it calls some vanilla code to get the fuel level, I've changed this to only check if some fuel have been used and a slower check cycle, if it can fill it will go faster until it can't fill anymore.
Related commit: 93844e6

Thank you.