Unbearable stutter when gaming on Acer Aspire 5 A515-56G
I've been using my Acer Aspire 5 A515-56G for a couple of months now and was having issues with cpu clock speeds going from 3Ghz+ to 600/400Mhz for no reason but the problem went away and it came back now I started playing fortnite and the graphics were bare minimum and cpu is stuck going between 1.4Ghz to 400Mhz the tempretures were around 70 and the battery is plugged full at 100%. this is getting unbearable as before purchasing the laptops I saw benchmarks on it and saw it able to play a lot of games but those same games I cant even play at 30 frames without getting constant stutters I tried all the solutions but nothing is working I took it to the warranty service they said it is a "protective measure" to protect the motherboard from being fried which doesn't make sense as my 18 year old Casper Nirvana used to run games without any issues.
If there is any solutions please let me know
Windows 11 Home 64Bit
8 GB DDR4 2333Mhz
I5-1135G7
Nvidia Geforce Mx450 2GB[Edited the thread to add model name to the title]