Hmmm...I just bought a P95 (test fired in May, 2013) and the trigger on mine seems a lot lighter and smoother than I remember my previous P95 being. Now, it's not "light" by any stretch of the imagination, but certainly manageable in DA...but the SA pull is very, very nice. Some take up, but then a light, crisp pull. I'm very pleased with the SA action...and I hope the DA action will get even better with some live fire/dry fire.
If yours is that difficult, maybe talk to Ruger? The DA pull on these guns is never going to be like a striker fired gun, though.