Dozer and his wonky shield

I recently read that the reason for why Dozer moves so slow when holding the shield is because it is supposed to be a trade off, which makes it easier for the adversary player to counter him. The problem with this said balance is that it becomes too easy for the enemy player to take out Dozer. Because they can simply run past Dozer to gun him down as I have described in my post above. And not only that, on numerous occasions I have encountered players that will use other means to dispatch him quickly. Most notably with using either the [Recoilless M5] or [C5]. The use of these weapons against Dozer serves as additional proof that his slow movement speed is not a good balance. I think his inability to look down and vault over objects is enough of a trade off for using the shield. The only thing that can be changed is the damage that he deals with each bash. Instead of being a one hit kill it could instead be changed so that Dozer needs to bash an enemy player 2 or 3 times before they go down.