Sudden Fps loss in game

dj9395

Prominent
Mar 28, 2017
1
0
510
Hey guys i'm playing video games like Rainbow Six Siege and Sometimes CSGO it was all normal before until then 3 months ago i started getting huge fps loss in almost all games, my normal fps in Rainbow six is 60-50 but after some mins it drops to 25-30(red) and it's really unplayable i did everything in my power to fix this but situation is still the same.example i cleaned dust off my pc i installed new gpu drivers i tried scanning my computer etc but it dosent help at all :(

my specs
Core i3
Ram:8gigs
Graphics card = R7 250 1GB DDR5

help is appriciated.