We're in a JIRA Cloud instance. We have a project with over 3500 issues. On our Kanban board, we have >1000 in our last column. We're seeing quite a performance hit when working with the build. We notice if we remove the status in that last column - to eliminate >1000 issues, our performance goes up greatly. Is this just a constraint in JIRA Cloud, or is there something we can be doing to improve performance?