Yes your instance is very slow. That’s not typical.
Bitnami is a non-standard third party install. Have you raised these issues in their community?
Some of these online benches don’t make sense for a Single Page App (like Discourse) because each client downloads most of the JavaScript on first visit. After that most page transitions should be near instant as many things are cached and only some specific content json is being retrieved from the server on most transitions.
(I believe CDCK is working on spreading that download beyond first page pull but that’s kind of getting off topic and it’s not your issue)
My instances are self hosted with the standard install with very modest hardware (4GB VPS) and fly 
.