2d Animation (with GUI) or 3d Skinned mesh Animation more performent?

[foggy umbra]

I'll make plenty of set and very smooth animations with complexer chacters. Should I do skinned meshes or 2d Animation, so GUI ( 100 frames)? I don't care how difficult either option is, just would like to know what is more performent

[flint trout]

why is performance such a concern?

[foggy umbra]

I'll have Tens, maybe Up to a hundred of These. Plus, my Game should be enjoyable on Low end devices :))

And I decided to do 3d models

[flint trout]

3d models are definitely more performant