...
Couple of things, maybe
It has as 6lb DAO trigger pull weight, IIRC
This may be reduced by a couple of pounds with an aftermarket main spring, possibly. If so, this will lesson the pull feel and give it a faster/quicker pull.. say like Glocks which, iIRC, have around a 4lb DAO trigger pull weight.. Nice weight/pull IMO
Also, depending on which trigger you have but, if like my P225, it has the full looking trigger yet it is a pressed trigger (hollow) vs a heavier (far better trigger IMO) solid aluminum trigger that IMO helps aid in pull weight feel/balance with more balance in a much heaver trigger, that in itself, aids the DA pull via less felt pull weight of the DA or DAO pull itself..
Or, simply send it out to, say Gray guns who specialize in trigger jobs on Sigs..
http://grayguns.com/
Or, chamber a snap cap and start pulling over and over to put some time on the trigger action to help smooth it out more..
Luck,
Ls