Animation is off of my character after I use the UE4 mannequin rig

Hi,

So I am Using the UE4 mannequin rig for my character model I imported ,but when I switch to my character the arms are wider apart from each other and the feet are standing wrong, as you can see in the images I have added.

I tried manual posing the bones, but that will be a lot of work doing that with all the animations I have.

Is there a way to apply it on all the animations or is there another workaround to get a better result?

I used ActorCore AccuRIG to rig my character.