I have Acer Aspire Gaming 7 (model no. N19C5A) and it suddenly giving me fps drops on charging while on battery it runs super smooth. I tried many fixes like changing the processor power management settings, setting graphics to a max on nvidea control panel, changed my power plans, disabled real time antivirus protection, etc. Nothing seems to work. 6 months back i could play games, stream it on discord with no issues but now all of a sudden it started giving fps drops out of nowhere. I check the cpu utilisation at the time of fps drops, it was around 60-90%(then it went back to around 20-30), while my ram was at 90%+ usage. Cpu temp was below 80 C and gpu was below 90 C.
Specifications:
Processor: Ryzen 5 5500U
Gpu: Gtx 1650
Ram: 8 gb
135 watt charger
[Edited the thread to add model name]