Bill 2 has the answer - it works
The popup hits me when I am playing BattleField 3. Just when I am in the middle of a bun fight - grrr.
Answer is - for a specific hard hitting graphic app:
2) ...then the alternative is Right click on your application exe file, then click on properties, click on Compatibility, then check (tick) the "Disable Desktop Composition" option. Now, everytime you start the particular app, windows will disable aero and hopefully your performance nags will disappear. When you close the app, aero will be restored.