|First of all, thermal throttling doesn`t have anything to do with performance, atleast not in the context you asked. |
Thermal throttling is used to lower the CPU speed (& voltage) when the CPU overheats, so the CPU can cool down and thus prevent it`s damage. So, by all means leave it enabled!
About improving performance, you can OC your CPU to some point, although you will not necessarily see any significant improvement. Also, the performance depends on the game you are playing.
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