since i got my PC I've never had any problems like these. The graphics and fps on my computers just suddenly droped by a large amount and games are completely unplayable.Could anyone give a solution for this
But temperatures (in order of what you said) are:25, 24, 24, 25 and move up and down by one or two numbers
this temperature is really low, maybe in idle its ok but we need to know your temperature while gaming.
as i said, you could use MSI Afterburner to check these info.
Also you could use HWMonitor to get you pc configuration.