AccuRev GUI is extremely slow on Dell laptop when running on battery power.
The driver for the ATI video card has a "Powerplay" option which dramatically throttles down video processing power to conserve battery life when you are not connected to A/C.
Uncheck the "Enable Powerplay" setting from the Powerplay tab, procedure below.
Go into the Control Panel -> Display -> Settings -> Advanced
Click the "Powerplay(tm)" tab
Uncheck the "Enable Powerplay" checkbox
Click Apply -> OK
For more information contact AccuRev Support