While I trim my own horses, I am not a professional trimmer and cannot add anything to Loosie's and Trinity's advice.
Except: I will not be near as gracious as Loosie - I am just going to spit it out and say "get someone who knows what they're doing to trim your horse"
I am assuming you don't know anything at all about trimming, so I feel it's safe to say you could do every bit as good, or better, of a maintenance job than the Yay-Hoo that did this trimming exercise.
That's the advantage of not being a professional, I can say what needs said and I hope the farrier is not a relative of yours
Not at all your fault but the hooves can be easily corrected and become very handsome by someone who knows something.
Regarding how quickly they grow:
1. The longer they are left in the first place, the faster they seem to grow.
2. Or you could be dealing with metabolic issues. One of my horses has Equine Metabolic Syndrome. He is 25 and has always grown hoof a lot faster than other horses but, since the EMS exploded on him, he grows hoof at Mach 80 and I have to trim him every two weeks.
3. It may be a combination of #1 & #2