I use lava agni 2 5g, my ph auto connects to the wi fi, but specially when operating instagram, it doesn't work.

The stories are frozen on loops, the reels don't play, but the other apps function normally. I've tried restarting many times but even that doesn't work. Tried clearing my cache several times. This is happening for a few days now. I don't think there's a pb with my Wi-Fi. What should I do?