A little explanation for a newbie

[mbc07]

Nearly all MacBooks are known for poor cooling, there's a price to be paid to have that super slim, near unibody design. I even recall their recent fiasco where they offered a Core i9 option (don't remember exactly to which MacBook line) which ended performing poorly than the i7 variant simply because it throttled so much due overheating.

Regarding the fear of frying your CPU, that's very very unlikely to ever happen. As your temps get close to the thermal limit of your CPU, it will start throttling to manage that heat (in other words its clock will decrease and as result your performance will decrease too). If the CPU already throttled to its lowest clock and the temperatures still are close to the maximum or just got past what it can safely handle, the whole system will simply suddenly turn off (as if you pulled the power plug) to prevent any permanent damage. This sudden shutdown can also occur on recent game consoles, smartphones, etc., anything nowadays with a powerful CPU and too much heat. Sure, running at such high temperatures for extended periods might shorten the lifespan of the CPU or computer a little, but to the point of actually frying a CPU? Definitely not...

In other words, you can continue using Dolphin on your MacBook if you want, as long as you can cope with decreased performance when it gets too hot...