Throttle problem MMM and CC1717

[Brokenparts]

Its not running like it used too. It used to lite up all 4 tires from a stand still and now it just slowly rolls off the line before it starts to rip. Whats the deal? I am checking both battery packs atm. I put the timing back to normal and put the punch control to 0. I had it set to 20% becuase this thing is so powerful but now its just lazy.

If the truck is rolling slowly it seems to run at full power if I mash the throttle. From a stand still, its dead.