I'm exporting a 10-minute video, and Rush is only using 45% of one CPU core. It's taking 16 min to render at 720p. When I'm editing the video, Rush often shows CPU usage above 600%, so I don't get it. Would love to hear some ideas. Thanks.
2019 MacBook Pro
1.4Ghz, quad-core i5
16 MB RAM
Desktop version, Export, Hardware or GPU, Performance