Just over a year ago I took the opportunity to move to a tiny Caribbean island, population less than 100,000, and also from a fairly new build flat in Leeds with Virgin Media coax to an apartment of similar age with FTTP.
Granted I'm paying about 3 times the price for a 25Mb/s connection (about £125 after Brexit induced Moneygeddon) but that is a minimum, I regularly get speeds 10-30% higher and the connection is rock solid at all times of the day.
The box was installed by a couple of local chaps who impressively asked me to set my own SSID and password rather than leaving the default, and commented on Huddersfield Town's shockingly good performance recently, a far cry from the surly VM chap who was in and out as fast as humanly possible.
This confirms my theory that all the big UK ISPs are giving piss-poor performance to keeps costs artificially low and not even attempting anything like a solid service.
The weather is nice here too.