TLDR to get better performance, use bulk inserts instead of inserting one row per query. And (unrelated to DB perf) don't use the spread operator in JS for passing function args (the author says not to use the spread operator at all but you don't need to go that far)
PG has “copy” which would blow away bulk inserts. Other DB vendors have similar stuff for high-performance inserts. You would be much better off using those than using bulk inserts.
