7.5 pound trigger is about right for a new Marlin/Remlin. Mine are all within that range, from the 1960's through 1980's. It will slick up nicely the more you shoot it. Or, any decent smith can get it down for you. If the rifle is accurate there is probably nothing wrong with it. Lever actions tend to require more dickering with sight height than others. I use Williams and Lyman receiver sights on most of my lever actions. Measure the total height of your front sight from bottom of dovetail to the very top and order a replacement that is around .040 shorter, I really like Lyman and Marble's sights with 3/32" white dots.