Is the Mortalodon kill able?

I’ve been trying to fine tune Ralph to take on the Mortalodon or the Indoraptor 2.0 without using the same animals as they used but I’m not seeing how it’s possible while staying similar size. If I try to make the armor able to resist the bite and claws it becomes too heavy and sacrifices speed and mobility, if I make the armor lighter I risk deadly damage. I think it’s just too op