Having migrated to Photos from Lightroom after going over to using an iPad Pro, Raw Power has become my Goto editing app.
RAW PHOTO PROCESSOR IPAD PRO
I'm using Raw Power on both macOS (Catalina on an old 27" iMac 2013, but it's very stable), and iPadOS (iPad Pro 2020 12.9).
RAW Power unlocks the power of Apple's RAW engine with simple, easy-to-use controls.