Same experience. Mine was definitely not tuned to my liking when I got it either. I was able to drop the rear reg by 35-40 bar and it’s shooting the same speeds just about but everything is working a lot less. 90-100 shots per fill at 125/85 reg1/reg2 shooting 18.1g about 900fps.I believe 18’s as well.
Please don’t assume when you get your new Impact that the factory or the dealer has actually “tuned” it unless you paid them for that service. Even then i would be suspect. I have bought 9 new FX guns over the last 3 years. Half of them came through our best known FX dealer. None of the guns exceeded nominally operating status when they arrived.