I have an original Benelli M121 that was the forerunner of the M1 Super 90. I purchased that at a gunshow about 15 years ago for around $400. It's got ghost ring sights and it's pro ported with a nice sling. I can put eight rounds down range with virtually no muzzle rise before the first hull hits the ground. I've seen some real artists work with a pump, but the Benelli is hard to beat. OTOH, maybe I'm just lazy. Regardless, it works for me.
It’s only a matter of time. If they havn’t done it yet, they soon will have autos that will beat the faster guys with their old pumpguns. I’m not up on all the new stuff, but I’m guessing it’s been done already. But there will always be the odd freak that can shoot the pumpgun amazingly fast, just like there are still a couple three guys or so walking this world that can shoot a revolver faster than a top quality semi auto pistol. But it’s not a skill worth working hard at, in my opinion.
I once saw a guy that did professional demonstrations with his SAA 45. He was a quick draw artist. He loaded his gun with birdshot, so that’s kinda cheating. But he shot the little grapefruit sized balloons(water balloons) and also lightbulbs. He was so fast that he could shoot the gun twice and you only heard one bang. I never would’ve believed it if I hadn’t seen it. Before seeing it with my own eyes, I beleived it to be a tale invented by the old western paperback book writers. Another trick he did was hold his shooting hand straight out, palm down, with a lightbulb on the back of his hand. THen he'd draw and fire and pop the lightbulb before it dropped a fraction of an inch.