In my experience NVMes have so many more IOPS. Harddisks might be the bottleneck which slows everything down.
Saw this very cleary when switching to ssd/nvme as server-storage.
If I import all my users, they are are on the map, but just with clusters.
There are are no pins. I probably show myself with:
You state:
That's default:
forum/admin.php?user-groups/xxx/edit
What could be wrong?