Thanks for the report, same problem for me. It might be related to an issue the host got reports of on Oct 31st which they said was an issue with an ISP outside of their control.
For anyone else having this issue please try the London 2 server, I have increased the tick rate there which may have improved the feel of the grapple on that server.
Anyway, I'm trying to figure out where the issue with the London 1 server is 🕵️ Once I have more information, I will open a ticket with the host to try and get some resolution.