your stats look ok with max connection for fibre 2
as wifi problem have you tried setting the wifi channels manually by using a wifi analyser on mobile to see surrounding networks and channels in use then select a less congested channel
why post same thing as I have already replied to your first post
Looks like a cross-posted thread merge rather than reposting the same info.
You need to clarify what you mean by "WiFi". WiFi is your own internal wireless network but unfortunately, aided by BT's moronic advertising, WiFi is becoming increasingly used to mean broadband.
Don't think so as although stats are the same the posting date is today and was merged was post 4 days ago. If they had been posted at same time they would have been merged by CL on 18th