since updating to the latest version of JIRA which stated performance increases as one of its features the entire system is slow and simply unpleasant to use. Have 100 users and most have complained. On same hardware - which give a super fast experience.
This is a real shame as chose JIRA for the features and speed but mainly speed as much better than any other system out there.
Coming up for renewal and we will be considering alternatives.
Come on Atlassian, dont loose your way ...