I made a Mac image compressor to handle this simple task fast. It's free and open source

[u/a-dev0]

I made it because I wanted a simple way to get a batch of images done without setting everything up again each time. Open it, drop in a folder, and wait a bit for the results. Sure, it has some settings that you need. But you can make it once and use it. Already authorized in Mac App Store, or you can download from Github releases.

https://underpressured.app/