Windows 7 upgrade = poor Dolphin performance

[Shonumi]

OP, did you perhaps use a different version of Dolphin when you were using XP. If you used an older revision on XP, then upgraded to 7 and got a newer revision, that might be the issue. Newer revisions generally require more from your computer than older ones. You could try using 3.0, or anything older than 3.0-883 to see if that changes anything.