i have a nitro rush evo and i was wandering is there anything i should do to make it be at its best performance. if anybody has any ideas i would like to hear them. thank u

Depends greatly on what you want it to do. It's a different set of tips for how you drive. What aspect of performance do you want better?
Generally, if you are breaking the same part often, then that part/assembly is a likely candidate for upgrading.