The code inside this project can detect whether you are running it in Turbo Mode or not. Green Flag to run the project. Hold the <Shift> key down and click the small Green Flag to set Turbo Mode on or off. NB: You can set Turbo Mode before you run the project or while the project is running.
* See this tutorial all about Turbo Mode and detecting if a project is running in Turbo Mode: https://scratch.mit.edu/discuss/post/3680379/ The tutorial also covers "run without screen refresh" custom blocks and good structure for 30 frame per second games. - You can backpack the "Detect if Project in Turbo Mode" custom block into your own projects. (no credit required) - Also see "Force Projects to Start in Turbo Mode" https://scratch.mit.edu/projects/325372524/