Changing Injured Movement Speed

Now when you're running through the maps of DBD and you haven't met the killer yet it makes sense that you're bright eyed and full of spunk. However after that sharp object slices your body up like a lawnmower you start to wonder...why am I still full of so much energy. And if my character is limping...why haven't I slowed down at all? But you're still being chased so you ignore it and then in a while you find yourself hanging in the air with a metal hook sticking out thine shoulder. Your comrade rescues you but your journey isn't over yet. The killer is nearby. So after all that you run at full speed still limping holes all over your body, blood dripping from every hole whether it was there before or not. And yet, how? If you are limping how are you running at the same speed as someone who has no limp? Someone who isn't suffering from severe blood loss? Now I play both sides of this game and I can say that playing survivor is boring because the challenge and scare factor is gone. It's just a meme at this point. But if there were a 5% maybe even 10% movement penalty to injured survivors until they were healed fully it would not only promote altruism but make killers like: Plague, Legion, and Clown better because people would need to heal in order to be able to get away from them. And if this happened it may also mean that blood lust may need to also be reduced a little but if you get to the third tier what are you really doing with your life anyway?