Help with ESC setup!

Just got a RX8 system but the buggy 2050kv version.I'm using this a a X1 CRT on 4s lipo.Car weight in at 4.3kg so its light.

Got a hotwire to setup the ESC.I only bash and don't race right now.On my 5200mah 35c EP Lipo's I get round 20-22min run time on longish grass.

Gearing is 14/62.

Problem now is ESC and lipo's run super cool.Fan on ESC is off most of the time so no problems there.Must I go up one tooth in gearing?

Also give me good starting point to set the ESC for bashing.Values of each will help allot.

Thanks in advance.