> New issue trackers feel faster for the same reason switching browsers tends to feel faster—you're getting rid of all of the crap you piled up in the old one. Don't migrate your backlog, start with only a couple engineers in a new issue tracker, and suddenly, wow!, this new tool is so much better!

Sluggish software can be more than just a data bloat issue. It can also be caused feature bloat, or software architecture that scales poorly.

Anecdotally, I recently worked on a project using a fresh Jira Cloud account. It was still slow.