@e33144211332424 said in Problems with CPU performance:
That's why I said to run it connected to the outlet so that it won't be starved for energy. Can offcourse also go and play with bios settings and do other stuff to make sure it's all setup for sustaining as high of core clock as possible but considering the OP I think that simply getting cooling pad and running from outlet instead of on battery is the best advice we can give to him. Otherwise he wouldn't be asking how to make his laptop run better.
Even if on grid power; most laptops have a limit somewhere. Even my Workstation Thinkpad with big heatsink and fan will not go to the max boost on the CPU if you also load the GPU a bunch. Even with low temperatures. Probably some internal power supply unit that is used to it's max. If I decrease GPU load, the CPU will again boost higher.
That's why a desktop is so nice, because if you pick the parts right, it's cheap, not noisy and has consistent high performance.
Use a laptop if you have some absolute need for mobile computing. For everything else it's just a stupid trend. Desktops rule.