As mentioned, a new auto pistol needs 150-200 rounds of break in
to loosen up, remove ruff spots and edges and smooth things out a little.
A good amount of oil or some grease on the slide will also help at first
and can be minimized later.

The ammo's energy has to be enough to move the heavy slide and also the new
factory springs that came with your weapon.

Most data is minimum to work most pistols actions but not always.
I need more energy for my 5" than my 3 or 3.5" pistols but this
does not always work the same.
Good luck breaking in that new weapon.