CPU usage is low — usually 1–5% on a modern VPS. RAM sits around 200–400 MB. It’s lighter than running a browser-based solver.
If you run SER on a VPS (which you should), you aren't staring at the screen 24/7. When CB encounters a new captcha type it doesn't know, it will pause the project and wait for you to type it in. This kills your LPM (Links Per Minute). gsa+captcha+breaker