Amusingly, exactly opposite experience here. That said, our on-prem is jira and confluence integrated with db on same machine, and apache in front doing additional caching. I imagine like so many things it is how you set it up...
If you read my previous comment, I said it was largely the specific poor plugin that caused most of the performance issue with the database queries. I never complained about the overall speed of on-prem Jira. That was the assertion of the person who’s only ever used the cloud version.
