My car sometimes pauses when I shift out of reverse. What's the deal?

Hello, i would say that your transmission pump is going out. You can take it to a shop and they can unplug one of the lines that goes over to the transmission oil cooler and check the oil pressure. Then you they can decide from there. Or it could be that the friction clutches in the transmission are worn out. Which would also cause it to feel like the transmission speed is not matching the engine speed. Hope this helps.