No. The most graphic intensive thing I've used so far is SharpEnviro in place of the regular Explorer shell - and that is only on my day-to-day limited user account. The admin account which uses explorer.exe is still subject to this behavior. Most of my Windows settings are set to prioritize performance over appearance, to where I don't even use Aero. I don't use it for gaming, and I notice the fan starting to work with one tab open on Google Chrome, or one on Firefox, or even something as small as the Toshiba PC health diagnostic utility provided by the manufacturer.
And yes, it's running on batteries, but it's in the "eco" mode provided by Toshiba - hardly a demanding power scheme.