Esc Settings Vs. Runtime

[brushlessboy16]

Currently I run y Truggy in the nitro Class at my local track. 5 minute heats and 15 minute mains.

Setup:

Cen Matrix TR FRE

Gearing 14/52

4s

CC 2200kv Combo
- 0 Timing for heat, No punch control, 11.8v cutoff.

Temps after a heat would be
Motor-115
Esc-105
Batteries- 90


I Run 4100mah packs for heats and 5200mah packs for Mains. The 5200's can last about 13min going full bore.


What settings would i tweak to get a bit more midrange grunt or to get a bit more runtime.
Thanks :)