Sudden fps drop while the laptop is plugged in.

[Pranjal_rudingw]

Whenever I play game (MINECRAFT) . It's a low end game which runs in every laptop or computer smoothly. But when I played minecraft before 6-7 months it runs perfectly. Without any fps drops. But now I play like 4-6 hrs a day . And nowadays I need to face serious frame drops. Like it constantly runs at 100 fps and then it suddenly falls to 20-25 fps which is kinda unplayable. I get annoyed everytime I play. I searched alot about it and came to know that it's cuz of my graphic card it's very old like ge force 110mx . And when I play there is charger plugged a gaming mouse Logitech 102 lightsync and my device charger so that I can use usb tethering.  Then I searched some YouTube videos for reducing my fps drops . I found a person that actually told the way to reduce fps drop. But it's not permanent in my laptop . ( It's i5 8th gen) . From that process I have to change some settings in registery . After that I have to restart it everytime like after 1-2 hrs . But that time the game runs smoothly . I wanna ask if there's a permanent solution for this thing ? . If,yes then pls reply it would be really really helpful. And I would mean alot.