This is my second tutorial and as usual I hope it helps.
Have you ever played Guitar Hero 3 PC and got terrible lag. Well, if so there´s a way to get up to 10 times smoother gameplay just by removing the note flames that pop up every time you hit a note. HOW!?
The only thing you need to download is the program 3D-Analyze. Download:
http://www.3dfxzone.it/files?object=3dfx&objid=100
Now when downloaded you just unpack it and boot it up and it will come up with many squares you can´t check. Now click the big "Select" button and browse to your GH3.exe and press open. Now you´re able to check the squares, but you´ll only have to check one of them. The box in front of "Enable Lightning". Once you have done this, simply press the big "Run" button to start up the game for the first time without terrible lag.
Enjoy your smooth gameplay and if you have any problems (which you don´t have) leave a comment or PM me
