Definitely, the most direct and root cause is: the system fails to dissipate heat fast enough . Whenever the CPU or GPU takes a lot of load, it will get hot and reach a point where the cooling solution in your system fails to cope with the heat generated. At this time, the thermal throttling will kick in.
Read moreHow do I throttle chrome performance?
To use the network throttler in Chrome:
Read moreHow do I throttle my CPU?
Go to Control Panel > Hardware and Sound > Power Options: Check which Power Plan is currently selected . The Power Saver and Balanced modes will both throttle your CPU under different circumstances, in order to save power, lower temperatures, and reduce overall system noise.
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