Oftentimes new people with a straight find the same thing: gets hung up in the beard and question the sharpness of the blade....I know I did. Ya gotta remember that people-honed blades are most likely no match for the hyper sharp factory DE blades. That being said, you can get realllllly sharp hand honed edges. Part two is that the blade is likely longer than 2", way longer than a DE or a Cart, so if you are trying to take a swipe of your beard the length of the blade, you have to cut way more hairs at a time. Even further, the angle, speed, pressure, confidence, and general technique of a straight is so customizable that you likely haven't figured out the optimal spot to sit in that multidimensional variable space. (whoa, where did that come from?) anyway, is the edge too dull? Don't know. Get it to a more experienced person and have them use it. Send it out for pro-honing. Or just use it for awhile. Often folks find that as their technique improves, the blade gets "sharper", meaning of course that the blade cuts better/easier/smoother, which is quite different. Though after 6-7 shaves it very well might need a touchup. Was threading with another guy a few weeks back and after a bit he found that a few swipes on CrOx/balsa gave the vim/vigor back to his edge.
So what Doc said is bang on: learning it and figuring it out can be part of the fun, and lots of options abound. Keep asking questions, by the way, regardless of how silly they may seem: we've all been there and continue to ask them ourselves!
Me to wife (truth!): "Does she really need all these Barbie dolls? You only need two to have a conversation. Why so many?"
Wife, not skipping a beat: "It's kinda like your straight razors..."