Celi acting wierd on high rpms Options

[Nibbe]

So few days ago i speeded on the ramp to the highway and was feeling like theres not that much power i should have. Kind of lost some traction on high rpms. Then just drived normally without any problems and few hours later speeded again and the same problem camed. So took it to a little testdrive and found that theres something missing on the +5k rpms. On the low rpms it works all fine but when i hit it to 5k it doesnt speed well and sounds little too loud and kind of wierd. I think it might be some problem on the air but couldnt found anything myself so wondered if you 6gcers have some idea of what i should look at?

Btw i now its not 3sgte so it doesnt supposed to speed too well anyway but atleast my 3sge should go little faster than this. I think im not gonna keep up with some 1.6litre corollas.