I have a M96 Mauser that was converted to 6mm Remington, which has a #### on opening kit installed and some sort of speed lock kit.
One thing I noticed was the sear engagement was very positive but had minimum engagement with the striker face lug.
The striker face lug has also been ground back to shorten its travel.
I've never had a hangfire or misfire with this rifle, over hundreds of rounds. (I don't use it much)
A few years ago, I took it to the range to see if there was actually and "real" difference I would notice in the field in lock time.
There is, but it's just barely noticeable and under field conditions, I don't believe I've been able to detect the difference.
Almost all of the rifles I shoot regularly, other than milsurps, have adjustable triggers and frankly unless you're used to a specific rifle's lock time, I find it difficult to notice the effects from the slight difference.
I cut my teeth on old single shot 22rf rifle triggers (long,gritty,creep) and graduated to sported milsurps. Didn't get into the type of shooting where lock times were considered to be a factor until my late twenties.
It's sort of like splitting the hair on a gnat's backside for most folks.
However, that being said, there are people that actually seem to be able to tell the difference.
One old trick that was common not that long ago, was to use a screw, mounted in the trigger guard, to limit the travel of the trigger, after the sear was disengaged from the striker lug face.
Doesn't decreased lock time but it does limit the ability to keep pulling on the trigger and pulling the shot.