ISBoxer includes a feature to detect CPU throttling, and warn that this may cause poor performance. CPU throttling is most common on laptops, where maximum output is not typically necessary (or desired). However, when you have several game windows open, it's time to let loose! Any GamePerformance
This guide has tips for improving overall performance while multiboxing; from ISBoxer settings to in-game settings, and as a last resort, even hardware upgrades. Any GamePerformance
How to get max graphics on your SLOT1 character's screen at a decent fps (20+ for Neverwinter) while driving 2-4 slave characters in SLOT2-5 off screen or in mini-windows. PerformanceNeverwinter