i was thinking ... you can use all kinds of java parameters when you startup your server ... i tried to paste my servers java parameters into my client ... and got about 30 fps more than before without being able to feel any difference other than my minecraft was faster so my question is .... can you recommend any parameters for the client ? my servers startup that i tried with was Code: -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=2 -XX:+AggressiveOpts (if you try this ... edit "ParallelGCThreads=" to the numbers of cores on your system) and i used magic launcher to put it "on" the game EDIT: i noticed now that entities may move "laggy" around