Hey all, just reposting to bring the answer to the top for those looking.
"We are constantly reviewing traffic management, so as to optimise the experience for our valued Big Time customers.
While our traffic shaping is working well, we are looking into minor routing issues with Big Time that may be affecting a small number of users. In line with our monitoring of Big Time, we will be making changes over the next 2 weeks, we do expect those few users with latency issues to see an improvement.
Thank you for your patience."
Sounds like they'll be fixing it within 2 weeks, lets hope that solves it for all of us!