Dell G3 3579 - CPU stuck at 0.8 GHz on Battery

Ever since I got my Dell G3, I've been having a blast with it when plugged into an outlet. But as soon as I disconnect the charging cable and attempt to do anything on battery. My CPU speed is limited to 800 MHz, according to Task Manager.

I upgraded BIOS 1.11.0 for my computer, and installed the latest driver!