Displaying games on mobile devices?

Quick question for the hardcore mobile gamers here. I’ve noticed that when I use dedicated gaming hubs, my device seems to run cooler and the frames are more stable compared to just launching the APK directly. Is this just a placebo effect, or is there some actual low-level optimization happening behind the scenes? I’d love to read a professional take on how these hubs interact with the hardware to prioritize gaming performance over background syncs. Does anyone have a link or a study that covers why the mobile experience specifically needs this kind of dedicated environment?