96 Camry 2.2 any tricks or tweaks out there
 

I bought this car about 4 months ago and i really wanna put some cash into it, however for the time being id like to know if there are any tricks or tweaks to improve the performance of this car.
I once had a 92 ford escort 1.9 SOC, and it could dust this Camry without a problem.
The car rans good, has a slightly rough idle. Anyways if anyone has advise i would be thankful.

My Vehicle:
2.2FL Auto Trans,4 Dr Sudan. Miles 160,000

P.S. I also just installed cold air intake, sounds great in this car.