We are experiencing performance issues too. Just logged a bug report. In our case, it’s not data coming from the DB though, but instead all the data is via API’s. There is no degradation in the API performance (verified via POSTMAN).

One thing I have observed is that static.js & dynamic.js takes a long time to load - Not sure if you are seeing something similar - and hence we are seeing a blank page for a while before the actual API data becomes visible.