In no particular order...
1) slow the car down, then work on the setup....
Gradually, get the car going faster and this should slow the car down enough to see at what point it is loosing traction
Example. I was grip rolling on sensored only mode, changed to dual drive, slowed the car down, took TQ in rounds 2 and 3 of qualifying, went on to win the 6 minute A main, led from start to finish.
The car would not generate as much speed, i had too much rip out of the corners, and too much rotation = grip roll. (I'm still working on it)...
2) Glueing the front tyres outside side wall can help in some situations too.
3) lower your rebound in your shocks.
4) try different springs or oil, and pistons.
5) It always pays to have a logical mindset in r/c.