This is one of my gripes about vampires, like - if I'm watching the action in a vampire fight scene and they're doing incredibly stupid things that I of all people can notice, obviously they haven't spent any of their 200 years as a vampire learning how to fight. Give someone superpowers and I guarantee you they'll actually do stuff with those powers. But when you compare with another vampire, they're basically just even again, meaning practice and education is just as important.
You need 10,000 hours to get good at something. For a creature that doesn't need to sleep, and can devote say 20 hours a day to working on a skill, he could legitimately master something every other year. For a 200 year old vampire, that's 100 separate vocations for which the vampire is an expert.
I say the vampire who doesn't know everything there is to know about medicine, combat, engines, piloting, sailing, carpentry, wilderness survival, the stock market, banking and finance, cooking, painting, basically every art, craft, and science is a lazy fucking jackass.
One could argue that vampires, as dead or cursed things, no longer change. We see that physically in just about every vampire story: new scars slough off, old tattoos can never be removed, the creature never ages. But I've never seen a vampire story where the mentality is under the same restriction. Furthermore, we typically see older vampires becoming more powerful - which is either an intensification of whatever forces created them, or an improvement in the physicality or mentality of the creature.