FEX and FPS

Hello and happy holidays to all!
Situation: I loose half my FPS when the weather is bad. Take a look.


Is this normal? It really worries me because I've never seen anyone complain about HUGE FPS LOSS due to weather.
Situation: I loose half my FPS when the weather is bad. Take a look.


Is this normal? It really worries me because I've never seen anyone complain about HUGE FPS LOSS due to weather.