Hello,
I would assume that there is a performance improvement when using Gateway-ST (GitHub - storj/gateway-st: Single-tenant, S3-compatible server to interact with the Storj network) or Gateway-MT (GitHub - storj/edge: Storj edge services (including multi-tenant, S3-compatible server to interact with the Storj network))?
Gateway-ST is probably sufficient for your needs and easier to set up.
If you want to make a speedtest I would recomment Storj/Uplink. Its a CLI tool where you can upload / download files.
Be aware that the default settings are not ideal. Please see for a 8 core CPU:
If you have a more powerful server, you can go even faster.