Hi, Wraith, and welcome to TASVideos.
As Challenger pointed out, your submission is slower than the currently published TAS of the same category, and cannot be accepted as such. This is unfortunate, but honestly, expected.
With that said, I've watched your submission, and you definitely have "run right and jump" down as a solid concept. You have some understanding of how Mario moves, and how to keep him moving, and that information will serve you well if you want to make another attempt at this game. You do, however, forgo a lot of time-saving glitches in your run (which is one of the reasons that it is slower than the existing published file) and I feel you might not understand why some decisions in the existing route are taken, such as why a Mechakoopa is kept around for Bowser's second phase.
I strongly encourage you to read the
Game Resources page for Super Mario World, as well as the extensive
thread for the game to further your understanding of it.
Again, welcome to the site, thank you for your submission and your attempt; while it isn't publishable here, it is definitely a good start.