Oh i know a bite from any snake that is 6'+ is not going to be fun and could require stitches. I'm just saying, if your snake is mellow at a young age, they generally mellow out even more with age as babies tend to be flighty and/or bitey. Like for me, I've never been bit by Caesar. Only time he ever got mad was when i introduced a hook to him as a baby. He hissed and opened his mouth, very angry. Since then i use a twisted paper towel to boop his snoot and he immediately either lays down on the cage floor or backs up into his hide a little. Now feeding day is different as Caesar turns into a demon when he smells food lol. I've had to use the sliding glass door on his cage as a shield once.
As for speed, he might calm down with age. I mean Caesar is a spazz when i take him out some days but it's mostly just him trying to sit on my head or stand straight up in the air. He generally doesn't try to run unless he gets close to his cage. Then he will go for his cage as he seems to really love his cage lol.
But each snake is different. Yours is more dwarf than mine where as mine is more mainland so that could also play into the overall attitude.
Also i looked at Caesar and i did find spurs. he wasn't pleased at all. I don't think he felt like coming out. He was more than happy to go back into his cage and then just went to the warm side and looked at me...giving me the stink eye haha.
Oh forgot to mention, i have had Caesar shove my hand away from his body when I've tried to pick him up. I'm guessing thats his way of saying 'leave me alone'. But i usually just pick him up anyways and he just gives me stink eye lol.