It seems to be a Telstra thing as it has been slow for me the past two night but Nasher isn't experiencing the same issues.
When Nasher went on his phone (with Telstra) it was slow for him too.
We are looking at changing server locations and this could solve the intermittent Telstra issues.
If others are experiencing issues (and even if you aren't) let us know which ISP or Telcom (Telstra, Optus etc) you are with and also which platform (Desktop or mobile) you are on.
All data helps us in pinpointing the issue.