I installed Hummingbird and my site was considerably slower

I installed Hummingbird and my site was considerably slower than with WP Rocket, so I deactivated Hummingbird and I was looking for a way to uninstall it but I cannot figure out how to do that. I provided support access from my dashboard and added a comment but I'm not sure if that's the same as submitting a support ticket or if I have to submit a support ticket.