I am loading files into Redshift with the COPY command using a manifest. The files are in S3. Unfortunately, there's about 2,000 files per table, so it's like

users1.csv.gz, users2.csv.gz, users3.csv.gz, users4.csv.gz, etc

I don't know if that matters or not, because the files are loaded with a manifest, and the manifest is supposed to parallelize this. That being said, it is really slow to load a table, and I need to speed it up.

What are some things I could do to speed this up?