Occasionally it has been reported that users will have high wifi/latency or periodic signal drops. This may be caused by WiFi power saving being enabled.
You may be able to resolve this by disabling WiFi power management:
Create a new file at:
/etc/NetworkManager/conf.d/wifi-powersave-off.conf
with the contents:
[connection]
wifi.powersave = 2
Then restart (not reload) NetworkManager
systemctl restart NetworkManager