Jira is typically not slow. It's usually the plugins you have installed. Some plugins like big picture even have their own databases that need to be updated

Jira is typically not slow. It's usually the plugins you have installed. Some plugins like big picture even have their own databases that need to be updated separately from the plugin, and can cause performance issues. Start jira in safe mode and check the performance. Then check your plugins one at a time until you find the culprit. They also have some nice built in tools that often help you find the source of these problems. It's a product, but it's also a platform, and sometimes the stuff that is built on the platform causes the platform to buckle.