Does using a DB snapshot speed up Kaspa node synchronization?

Yes — starting from a database snapshot can reduce the number of synchronization stages your node needs to complete. A full sync from scratch always runs all five stages, but a snapshot captures a partially or fully synced state, so the node skips the stages that are already covered by that snapshot data. How many stages are skipped depends on how up-to-date the snapshot is relative to the current state of the DAG. For anyone setting up a node and wanting to get online faster, using a recent snapshot is worth considering.