First and foremost, is the “last committed block” increasing?
If yes, everything is working properly.
If it increases too slow so that it’s not catching up, the issue is most likely:
- not enough RAM. Do you have at least 8GB?
- disk too slow: you need an SSD, HDD are too slow
Can you check that:
- RAM use
- CPU use
- disk use (
df -h)
EDIT: This looks like a duplicate of Node sync time keeps increasing - ver 3.2.1