Bummer. XS makes an express rear blade to use with their big dot. It may give up some precision but it’ll be easier to see. Or Williams makes an old style receiver sight that will mount using your rear scope screw holes.
I would look at European made sights. Not sure where you would get them. A "battue" sight is mounted somewhat forward on the barrel and used for driven boar where the shooting appears at times fast and furious. You can see them at the Browning Europe website on the Browning auto, straight pull, etc. You can see them in this video on a Sauer (start at 25 second mark.)
I live in eastern Europe. I have Recknagel open rear sights on a couple of my rifles. They are the fastest open sight I have used. Unfortunately, they only come with a 16mm dovetail. I cuy the dovetail down to fit the standard 3/8" dovetail on my American rifles. The rest of my iron sighted rifles have XS ghost ring rear sights. I prefer a white bead front sight on all of them. RJ free online image hosting