I just recently got into the RCnitro car market and bought a traxxas rustler 2.5 - i followed all the break in instructions through tanks 1-5 and started adjusting the high speed needle and low speed needles as well as idle. I thought Ihad them both tuned fairly well until my after about 15min of run time my truck starts bogging out and slowing down. Its hard to get it to accelerate after this point and will sometimes stall if i try to punch the gas too fast. The first 15min or so are fine. I dont think i'm running too lean because i do see a trail of blue smoke everytime i accelerate however my engine starts to smoke as well.

Is this an overheating problem? Any idea how to solve it.

Also any suggestions on a way to "reset" the high speed and low speed adjustment needles? Like tightening them all the way up and starting over or loosing them all the way out?

I'm not sure how to fix this issue or what the issue actually is, I really enjoy the car and want to take good care of it to have it for a while so any help would be greatly appreciated