Browning Leverage Trigger

Hey everyone this is my first post here. I have been an avid shooter for about 40 years now and got into airguns around 2011 and have been enjoying them moreso than my rimfire/centerfire counterparts. Last December I purchased the Umarex Browning Leverage in .22 as a Chrsitmas present to myself as my wife had no idea what to buy me lol. Anyway I love this gun, it has decent power but the trigger on it is unpredictable when it breaks. My question is, is there a mod out there that I could do to make this trigger better? What I mean is there is no hard stop to the trigger, it is just a long creep before it fires.



TIA 

Ian