Both of these are easily fixed with practice while still doing them. Jumping over things without an animation can be done, just run and press space bar, if you press space bar before you get to it you will still jump over it but no animation. As for the 50% reload animation being a waste, this might not be true for 50% but most of it is a waste and is easily fixed my learning how to cancel the animation by either A) pressing sprint at the right time or pressing your switch weapon button twice so as to act like your going to switch but dont, both of these have to be done at the right time or you wont actually reload at all so it will take practice.