Why is Java slow or causing Lion to be slow?

I did a fresh install of Lion and installed all the needed updates including the APPLE java update plus the malware remover that came with it. Since then a lot of Java games are SLOW. I'm not sure if it's actually java or a Lion update that's causing this issue. Someone suggested I remove my printer software but I dont remember that causing issues before the fresh install. It seems it happened after Apple updates.
Any help is appreciated.
Thanks

It is slower because it is an interpreted language. There have been many improvements to the language from compilation and through newer JVM's that further optimize the code. It is someting you must work w/ when you use the language.

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