I'm running the latest update for photoshop (CC), and I started noticing this tiny initiation lag on certain brushes that's mainly noticeable when I'm trying to do a series of small strokes. I'm not having lag issues as far as I can tell, it just seems the brush will not initiate on the canvas until after I drag it a certain distance away from it's starting point. The strangest part about it is the inconsistency of the problem. It seems to only be a problem with imported brushes and only with certain ones. And if I disable smoothing on the brush, it might fix it or it might not, and if it does, then it only fixes it for a few minutes. The reason I know it's not just input lag is that I can press firmly on the canvas and draw tiny circles with nothing showing up on the canvas until I either lift the pen up or I drag it further from the starting point. I also tested it with a mouse to make sure it wasn't just my tablet and it does the same exact thing, except for when I disable smoothing, then it is fixed for the mouse but not for my pen. Completely lost as to how to deal with this.