You guys have to remember this was his first day out with the thing without any real testing or practice using it. I can already think of several ways to load faster, like using a butt cuff or shell holder on the stock so that you can rack the bolt back, grab a shell out of the holder, then load the new shell all in one fluid movement, instead of fishing around in pouches for your ammo.
But besides, speed isn't the point. This is a gun meant for FS so that you can reach out and touch people who think they're safely out of range. All while keeping you safely out of range of most people. It's for a completely different style of play, it's not meant to be competitive with an Ego head-to-head on a speedball field.