question about fps drops

[Liamushh]

Hi guys, when im playing fortnite , all settings on Low , G,Sync is on , i'm getting alot of fps drops ..

my computer - 

I5 8600K

8x2- 16GB RAM 3200MHZ

Nividia 1080GTX

i have some questions , when the gSync is on in the nividia settings , the Vertical sync should to be / on / Off / fast / ?

 i have fps drops like to 20 - 30 fps 

my monitor is AlienWare 240Hz G,sync

[Liamushh]

16 minutes ago, Not Wills said:

have you installed drivers? sounds like youve got non

yes all the drivers is up data , after windows format ..

all the time i have like 144 - 240 Fps , sometimes its drops to 20 - 60 ..