How can i give my honda prelude 1993 better performance?

i have 150k miles on it. im not going to race it. i just want it to pick up faster, and give better gas mileage. and just overrall more reliable. please explain specifically step by step what i should do please? and please price the things i need. and please from most important to the least.thank you! and let me know if i should even do anything or jus leave it