Is anyone else experiencing very slow import and preview build load times for iPhone photos on an M1 MacBook Pro? I did not have this problem prior to this computer. Any suggested causes / resolution would be much appreciated!
RAW images from my DSLR are blazing fast by comparison. Problem occurs whether I import directly from the iPhone or via my computer.
Am using maxOS 11.2.3, an iPhone 11 Pro Max, and Lightroom classic 10.2
Sometimes I have trouble editing HEIF photos taken with iPhones as well. Photos taken by iPhone are default generated in HEIF file format, which is not really well-supported in Lightroom than the traditional JPEG ones... Maybe you should try converting it to JPG in advance?
Also, you mentioned that you imported photos directly from your iPhone to Lightroom? Using pre-built Lightroom features? I strongly recommend that you import your photos into the computer's hard drive first, then import them into Lightroom using the traditional method. If you are using iCloud Photos, you can use the Mac's Photos app to copy images to your hard drive. If you don't use iCloud Photos, you can use AirDrop or Image Capture app (which come with macOS) to import the images to your hard drive.