One thing you can’t get around is grip. Go with rubber. Forget urethane. Forget drifting in corners. That will 100% make you slower.
The rest is preference. I myself like.
Being low to the ground: drop deck or drop through. Wide ass board to be able to get some good leverage in the turns. You might be able to get the leverage with bindings but I like to toe and heel grab in turns and needs to move the feet around. I also feel safer without bindings.
You can dail in rkp to work great. TKP would be easier to dail in. I am on the 3-links.
Wheelbase is more important than I thought. That effect the turning/stability a great deal and the trucks / bushings can only compensate to a certain extend.
Battery/esc: You need enough punch. But not too much. The goal is to be smooth. Too much jerking from accelerating/breaking and you will be slower. I run my esc / battery (mamba xlx - Batt 500a capable ) on 60 % on the track. That seems like the sweet spot. I am always faster at the end of the session when the top of the acceleration is taken off from drained battery.