Not good news I'm afraid.
Plenty of choice for unlimited downloads, but no current possibility anything above eight or nine Mbps except on VM cable. The problem with VM cable on that exchange I expect would be bad latency/jitter and possibly congestion, as explained by MrSaffron, with there being no "superfast" alternative.
The figures you gave in an earlier post give a top figure of 7.5Mbps. That normally refers to the connection speed and is conservative, rather than the real world throughput. My 8-9Mbps is an optimistic guess based on that 7.5Mps - again a possible connection speed, not throughput.
I would estimate maximum throughput at about 80% of whatever figure we pluck out of that uncertainty

. Superfast that is not!
You could look at
Plusnet Unlimited Broadband and calls which has useful traffic management for mixed gaming and heavy downloading,
explained here.
Then there is Sky LLU. Similar speeds to Plusnet but so far as I know, no such traffic management. If you believe the explanation I just linked to, which I do, then Sky may be less good for your gaming and not noticeably better for the downloading.
O2/Be LLU are available, and used to be excellent, but difficulties caused possibly by their delayed changeover to a new network are giving rise to frequent reports that look like congestion.
TalkTalk itself wouldn't be a good idea, and C & W don't sell direct. There are a number of resellers that supply packages using the exchange equipment but not always the full system of both. I suggest you look at vivaciti and Aquiss for these, as their offerings are reputed to be better than TT itself.
Orange seems to be slightly resurgent but a horrible mess on the admin side with their EE dual identity

.
BT Broadband throttle P2P downloads when busy, and apparently nearly all the time on upload - which slows the download more subtly.
My broadband basic info/help site - www.robertos.me.uk |
Domains,website and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 54.0/14.9Mbps @ 600m. -
BQM
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