Global setting to control resolution etc to speed up performance

While editing and streaming, performance is very important. For people with lower powered computers, things can become sluggish. It would be great to have a global setting that adjusted settings like resolution of images created (if that speed things up), mesh density (if that speeds things up), and so forth. Then while editing/streaming, the setting can be cranked back to what the computer supports. When doing a media export, the setting can be set back to full resolution where it does not have to be real-time display. (Just go grab a coffee for the final render.) But the setting should be global, not part of the puppets, so people on different computers can adjust for their particular machine. (E.g. I have a cheap laptop and a powerful desktop. I don’t want to have to change all the puppets to move between computers.)