Probably the best performance boost you can get for Quake3 is compiling the QVM code into DLL files. This works great but causes some 'issues' when you try to play on servers with custom mods. Jack compiled these up and you can Grab them here. You should get around a 10-15% framerate boost on Win98 and Win2K machines. Do NOT use these DLLs unless you are a fairly advanced user who is comfortable moving files around. Thanks to Jack Mathews as always for hax0ring these. Extract the DLLS into your Quake3\baseq3\ directory.