Welcome to the site!
It's a fairly new design, and most companies that make aftermarket accessories like to wait a bit and see if a new gun is going to stick around before they tool-up to make parts/accessories for it. A good gunsmith/pistolsmith could probably reduce the trigger pull as well as smooth the action so it doesn't seem as heavy (smooth feels lighter, even if it's not measurably lighter in weight). However, good pistolsmiths are expensive, so I don't think you could get it done (properly and well) for less than $100-$200.
"Placement is power" -- seen in an article by Stephen A. Camp
(RIP, Mr. Camp; you will be remembered, and missed)