"How fast are your servers?" Wrong question. The right question: "How many servers do you have?"
One fast server is a single point of failure. When it crashes, your British iptv dies completely.
Multiple servers mean redundancy. If one crashes, you're automatically switched to another. You might not even notice.
A professional British iptv reseller runs at least 3-5 servers in different locations. A budget reseller runs 1-2. A amateur runs 1.
I once asked my British iptv reseller about his server count. He said "I have 6 servers across 3 countries." That confidence came from infrastructure.
What actually works is a IPTV reseller UK who can answer the server count question. Not the exact number (security), but something like "multiple, geographically distributed."
In most cases, resellers with multiple servers survive problems. Resellers with one server disappear when it crashes.
The pattern that keeps showing up: redundancy is expensive. Resellers who invest in it charge more — and deliver more.