No issues with most of what you say. A point to remember is that the fights were choreographed stage combat. They're made to look exciting and flashy for the audience, and even moreso for the fans who were familiar with the original movies with the somewhat stilted and stylized movements. With that said, there's a tremendous difference in watching a stage combat fight and watching two swordsmen really go at it. It's definitely not slow. The closest I ever got was olympic sabre and foil fencing (Junior Olympics, '88, woohoo), but even that is unbelievably fast. You blink, and you miss it. A step further, to the Japanese styles borrowed from heavily for the movies, and fights in that style did not last very long at all. Speed on the attack was of the essence, defense was minimized, and within a few strokes the fight was over.
I suspect a "real" fight between two Force users would be still for a few moments as each opponent tested each other's strength and skill in the Force, and then a flurry of motion and strikes.
And then one walks away.