I did the same with my optic ready Shadow 2. I had the front sight on for about 30 minutes before I decided I did not like the added competition of the front sight for my attention. And have just focused on practicing on finding that dot. I’m slower on the dot right now, but my accuracy improved significantly and the speed will follow as I get more comfortable with the optic. I’ve only been shooting for about a year now, so the transition easier.