[In Search!]S3 ROM

Hey guys. I'm so disapointed after switching from 4.1.2 -> 4.3 stock ROM(on SGS3) that I can't handle this "low performance" anymore. Is there any 4.3 super super smooth with no modifications super close to stock ROM? I don't want to loose battery life, I don't need any fancy ROM. A simple 4.3 ROM that is better then this laggy 4.3 stock one. (and yes, i'm using the stable released 4.3)

Thanks!:)