The choices that are made are usually just compromises between the various hardware and software limitations with the hope that the result will be the best for the majority of players.
The London 1 host does not offer faster CPUs in their London data center. Redirecting all players to the London 2 server would be the solution to that but I don't want to do that until more players are happy with the set up there. Additionally, I actually prefer the hosting company that provides the server for London 1. Maybe before long that host will have newer CPUs on offer that the server can be moved to.
We shouldn't get held up on the idea of a 100 tick rate anyway. Newnet at 60/65 tick rate can still offer a very good game for lots of simultaneous players. I only moved the Atlanta and London 2 servers up to 80 TR because it made the grapple feel a little less jerky on the most updated newnet available. The recommendation for newnet at a 100 tick rate was specifically for X-Cell because he operates a server with a very fast single core speed CPU for friends and family, most likely always less than 10 players.
Increasing the tick rate on zeroping might not actually improve things anyway. There is a bug with zeroping that cause some unregistered hits from time to time and increasing the tick rate may actually exacerbate that issue. The improvements in the feeling between the London 1 and London 2 servers are more likely to be the differences between newnet and zeroping than they are between the different tick rates.
There are many other considerations in all of this but it would take a long time to detail every choice that is made. Ultimately, the plan is to always improve the experience for players and one day the main combo server (wherever it ends up being) will most likely run a newnet at a higher tickrate.
Edit: London 1 is ZP at 40 TR by the way 🙂
