Ongoing issues with ee full fibre 150

I have had the above package for 8 months so still in contract. I live in a one bed flat. The only devices I use WiFi for are my TV and work laptop.

The connection has always been poor, but in the last month, I cannot stream anything on Netflix or prime at all without it cutting out - basically unwatchable. When I'm sending work emails with small pdf attachments, I have to tether from my phone.

I've now moved by hub so it is 3 metres from my work station and 4.5 metres from my TV. Ee adjusted the WiFi frequency to 2.4 instead of 5, but it's made no difference.

When I said about terminating my contract and compensation, I was told I would have to pay an early exit fee, and no compensation would be issued. I can only terminate without exit fees if I have a total loss of service for 30 days. I was also told the hub works fine and I'd only get compensation if download speed was below 100 mbps which isn't the case. The agent said the contract states they do not guarantee the signal reaching the devices.

I asked my neighbours in the same block of flats who their providers were, and where they WiFi routers were located. No one is having issues except me.

What are my rights here? I'm stuck paying for a service not fit for purpose, and I've been told if I leave 8 months into two year contract I'll have to pay an early exit fee. Thanks.