I have 42 Push Applications, each has 3 FCM variants, with each 15 tokens.

Loading the start-page of UPS was 37 seconds

• http://localhost:8080/ag-push/rest/applications?includeActivity=true&includeDeviceCount=true&page=0&per_page=8

and some pagination clicks to 4. page:

• http://localhost:8080/ag-push/rest/applications?includeActivity=true&includeDeviceCount=true&page=3&per_page=8
  --> took 32.62 seconds

I fear that it is loading the entire graph, per page: 8 push apps, each 3 variants, each 15k tokens