Editing a photo causes it to change

Hi, There’s one issue that makes editing photos problematic. When I take some photo it look great but a moment I open and start editing

it in Lightroom it immediately smoothes out the photo loosing many details and sharpness. It’s not possible to restore effect before that. This issue’s been since I’ve got an iOS version of the app and applies to all raw photos and only raw. Has anybody ever had similar problem?