I don't think so. First of all, Kprusoian is one of the three naval generals. He has the "sparkling fruit" of the devil's fruit in nature. As a general, he is on an equal footing with the red dog pheasant, and his strength must be very strong. His teacher is Zephyr, the former general of Naval Headquarters, and Zephyr himself is superb, especially armed and domineering. With such a teacher, Kprusoian is naturally not bad. He has strong swordsmanship. Because his fruit is shining, his speed is very fast, just like the speed of light. With superb fencing and kicking skills, the speed of light moves to attack the speed of light, and the body can also become a flash. It is difficult for others to beat him easily. In wartime, his body can also shine to stimulate other people's eyes, make others blind, and affect the fight.
Such strength, but also afraid of others? The result is definitely negative.
Secondly, everyone in Kprusoian likes to say "It's terrible", which may be his pet phrase. Kprusoian is a poor middle-aged man with eight eyes, a moustache and brown sunglasses. He is thin and long. In any place, such a wretched image will give people a weak expression, and some will tease their opponents. I often see and hear this sentence. There will always be an "ouch" or "ouch" in front of this sentence, and you will have your own personality. Kprusoian's personality also gives people a sense of cynicism and arbitrariness, and his manners and voice are obscene.
If you have this powerful strength and fast speed, you can naturally do whatever you want when you meet a weak opponent, so you can also meet anyone who says "it's terrible". After all, others can't help you, so there's nothing to be afraid of.
So I don't think Kprusoian is really scared, just joking.