A lot of them assuming you don’t get the required secondary powers.
Super speed, if your perceptions aren’t heightened it rapidly becomes impractical, if they are things are going to get painfully boring real quick. Even thinking at double speed means you are going to be waiting for the world to catch up a lot. Never mind what even relatively low G-forces can do to someone.
Super-hearing. Imagine if you really could hear conversations a block away, it can be hard enough discerning one conversation in a crowded room, imagine it being like that everywhere. All the rats and insects you will be hearing, the sound of people’s clothes rubbing together. Even if normally loud things aren’t deafening just focusing on one thing will be taxing.
If you don’t get secondary powers then super strength is going to suck. The human body is already capable of injuring itself with its own strength. How many fastball pitchers get arm or shoulder injuries just from throwing something really fast, or power-lifters who have something break or burst. Modern sporting records are starting to push up against the structural limits of the human body.
Super-hearing. Imagine if you really could hear conversations a block away, it can be hard enough discerning one conversation in a crowded room, imagine it being like that everywhere. All the rats and insects you will be hearing, the sound of people’s clothes rubbing together. Even if normally loud things aren’t deafening just focusing on one thing will be taxing.
Super hearing would essentially be tinnitus with some variety in the inescapable noise.
Super strength is something I could see being problematic.
The movies always show the super strong hero picking up buses or trains with one hand, but in reality you have to lift such vehicles in specific places, or they will be damaged. Youtube is full of videos depicting cars falling from mechanic’s lifts due to improper lift point placement, or just old fasioned rust. Imagine Mr. Incredible going to pick up a bus in a state where the roads are salted, and just breaking off a handful of the frame.
This is the kind of gritty reality I’d like to see in a movie. Stuff is constantly breaking when the hero tries to pick it up, he has to go through a montage of classes on structure and how to choose the best place to grab onto things.
Also leverage. Unless the super strength comes with stability, lifing a boulder from the edge would just make the hero’s feet slip out from under them. He has to lift one side straight up until he can fit underneath to balance the thing. Then he has to hope that the ground below can withstand all the weight of the boulder pressing on the soles of his feet.
