how much semi auto pistol shooting have you done?
im guessing you have a dual recoil spring? I prefer to align mine on my g22gen4 (40sw) at 90* off.
reason i ask about the shooting experience is tbis is not a revolver, or long gun. You MUST hold it firm and new style shooting techniques are lock out your elbows or almost locked out. Isosceles stance (body armor forward

)
https://www.pewpewtactical.com/shooting-stance-grip/ lean into it, if you have a bluegun or a squirt gun you can get your grip and have someone stand beside the gun and give it a decent slap right on the muzzle and that simulates recoil, it really shouldnt move. (We used to make sure, double check, and confirm empty and use a real gun no magazine no ammo in the room, but its 2023 and this is probably not advisable anymore)