Born2Run is correct.
Do not limit the motor/esc performance by turning down the epa it makes it run hotter and less efficient.
This was one of the first things i learnt from Shawn Palmer when the Speedpassion GT esc's came out.
What esc are you using ?
Look at a lower power/punch profile on the esc or similar setting.
Might be an idea to go to a tamer motor untill you get used to driving at those speeds.
casterracing EX-1 Pro, SP Silver Arrow
TOP Racing Scythe, SP 17.5, SP GT Pro 2.0
TOP Racing Scythe, SP 4.5 V2, Hobbywing Xerun 120SD 2.0
TOP Racing Scythe, SP 13.5, Hobbywing Xerun 120SD 2.0