I also used grease on the slide and frame rails and on the front face of the hammer.
Also, clean out the action to remove old dried lube and fouling and apply a good lubricant. That always seems to help.
As above, don't start tampering with it just to try to lighten the slide tension. That invariably causes serious problems, which may not be immediately or readily apparent.
One Match shooter woman I once knew kept a rubber jar opener pad in her shooting box.
She'd wrap the pad over the rear of the slide to give her a better grip.