Unefficient blocklist download & process


I have bought the recommended setup for a full node (rPi 4B, 8Go RAM, 1 TB SSD crucial, etc), and 5 days later I am still at 60% download of the blocklist. It is very slow, and looking at what’s happening it seems that it is inefficiently done.
I ssh to umbrel, then launch top to see what’s going on: Tor is always taking ~15-20%, but bitcoind is most of the time almost idle, corresponding to times where nothing happens in the umbrel interface (last blocks validated, no new block to proceed, just waiting). Is this because of Tor and bad choice of peers ? can it be made more efficient ?

60% after 5 days is ok. If it’s moving it’s ok.