Enhanced stabilization - this will sacrifice the amount that you can “zoom out” on a video in order to produce a video that isn’t shaky. I highly recommend keeping this on. Action mode lower light - this feature uses the ultra-wide lens while shooting. It allows you to move the camera around a LOT and the end result is buttery-smooth. This process needs a lot of light because it’s using the ultra-wide lens, which needs more light to perform well. If you turn this on, they will let you use it in lower lighting conditions than usual, but the quality of the stabilization and overall image will not be of amazing quality. Off is the default choice here. Auto FPS - I actually hate this feature. It will drop your video frame rate if the light levels are very low. When the frame rate is lower, the sensor has more time to capture light in each frame. Basically it sacrifices your frame rate for a brighter image. In reality, the transition is clunky and 24fps looks really bad for anything other than cinema. I gave it a try for about a week, I’ve left it off ever since. HEIF max vs ProRAW - Use HEIF or HEIF Max as your default (HEIF max allows you to zoom in further to your images). ProRAW captures a LOT more data in your images, which allows you to make heavy edits with lighting and color. If you have no intention heavily editing a photo, keep this off… the photos it takes are huge (upwards of 50x larger than HEIF files). ProRES - If you don’t already know what this is, do not use it. This is for filmmakers. This produces MASSIVE video files that will eat up your storage very quickly. Prioritize faster shooting - What’s more important to you? Taking better photos or being able to snap many pictures back to back quickly, but at a lower quality? I keep this off, I want all my photos to be in the highest quality… but your needs may be different than mine. Answer from macmaverickk on reddit.com