One of the major disappointments we have with JIRA cloud is that it's horribly slow with many simple actions taking a few seconds to perform rather than be complete in under a second.
We suspect this has both to do with insufficient server power given to cloud users AND a bad system design which requires making tons of unneeded requests as things could have been cached.
So, how slow is Jira cloud for you? Do you think Atlassian will make the effort to provide a fast service?
Mind you we're a team working from various parts of the world and the biggest project we use on Jira has just over 2000 issues so surely not a HUGE system. We have very fast internet connection and most other services (which are not Atlassian, BitBucket cloud speed sux as well...) are working really fast.