PUBG
PUBG
Check your settings, update the game, close background apps, and ensure stable internet connection.
Would be helpful if you at very least informed your hardware specs.
It might be related to your hardware or internet connection. You could check your graphics settings and lower them. Gradually increase them if needed. I usually keep mine at low, except for "view distance" which is ultra high and "textures" medium. This helped me boost my FPS slightly.
Start DDU in safe mode and reset your graphics card drivers completely...