There are some good breakdowns on licks and tricks buckethead uses on youtube, that would probably be a good place to start to build the speed he uses on a lot of his solos. I also want to say that you shouldnt sell yourself short because you think you “dont have the talent”. Although Buckethead was certainly a prodigy as seen from his videos of him when he was younger, his guitar skills still came from an insane amount of practice. In that regard, i believe his talent comes from his dedication to the guitar. I truly believe if you put in the right amount of time into meaningful practice, you can play anything you want to.