Fortnite hangs on PS4 for a few seconds?

I have problems with fortnite since I bought my ps4 Slim it hangs several times in the game and can hardly move for a few seconds my ping is 26 which I noticed when it hangs up packets / s to 0 I play with Wi-Fi I borrowed a ps4 from a friend and it works without any problems for him as soon as i connect my ps4 slim to another Wi-Fi everything is normal again.

does anyone know where the problem could be?

Play with lan, wlan is not reliable

Fortnite is dirt

Use LAN or gamble something better

I also freeze after the event