Fast.... We need to see how we place this music. From the beginning of the video, I had the image of a Saloon pianist, with the classic famous phrases "Don't shoot the pianist". These saloon pianists would start from the first [measure] and rhythmically, as you did, conclude with the last. If this was your intention, as it seemed to me to understand, I don't find it out of style at all and therefore The Entertainer doesn't seem fast to me at all. It seems right in relation to what the saloon pianist played before.
I have my own opinion regarding the matter of Ragtime and jazz Stride.
Reading from some authoritative sources (see Isacoff's Natural History of the Piano, or Polillo's "Jazz", or even Zenni's recent History of Jazz) certain testimonies emerge.
Some recount how during duels between jazz masters, ragtime players would challenge even the speed of sound. Often on improbable pianos.
Like Art Tatum who, while continuing the phrasing with his left hand, uses his right to lift stuck keys.
As we know, in front of a crowd, you need the spectacle, the speed, and "the theater."
It is also true that brothel pianists had to endure entire days at the piano. Therefore, sometimes they would proceed slowly in order to relax the rhythms of the environment. It is difficult to play from 8 in the morning until 4 in the morning, always at the tempo seen in the video below. And this is where the expressiveness of ragtime is born. Playing Joplin's Pineapple Rag or The Entertainer ("the blow") slowly has a completely different character than what I proposed in my amateur video.
Among the most important criticisms I have received is the flatness of execution and dynamics.
I acknowledge this, but I believe that at that speed, and on a Yamaha U3 upright, it is difficult for someone with my preparation to do any better (furthermore, it's recorded with a crappy camera microphone.).
It seems more like an audio problem from the camera. The camera microphone tends to increase the volume when it is very low and decrease it when it is very high, in order to try to ensure listening at a constant volume.
