I should have specified that it works fine on the Chrome. the desktop app is the issue.
If your ASANA is super slow in loading projects etc, try TURNING OFF DARK MODE !!!
I was having this issue for 2 +years - and looked and looked for solutions.
I just turned off Macbook Pro Dark Mode in the Settings and it is now super fast, hallelujah. I hope it lasts.
I truly hope it helps as ASANA is an amazing tool and kills productivity when its slow.