The biggest is this: this guy is a true professional. As in, he trains seven hours a day, six days a week. For those who need help, that means he is training 42 hours a week. That's as much as most Americans spend in their offices (roughly).
In other words, this guy doesn't train like it's his job...training IS his job.
That's important, because I see people occasionally who can't figure out why, despite training "really hard", they can't figure out why they cannot get to that level. This is why. This guy has been training for his job, and has been doing so since he was six years old! How many of us are in our nineteenth year of our careers? How good will you be at your career by the time you get there?
Sudsakorn starts his day with a three-hour run. Most of us don't have three hours a day to train.
The flip side of this is that if you really do want to get that good, this is how you do it. Hours and hours of training, day after day. Of course, most of us can't do that, but if you can, more power to you.
As a aside, for people who wonder why the striking in MMA isn't as polished? THIS. This is why. There's no one fighting in MMA who has devoted that kind of time to learning how to hit people. And guys that are that good don't bother with MMA...their money is elsewhere.
For those interested in seeing what this kind of training can produce, a highlight reel