Does it affects the game performance if there are multiple meshes in some parts?

Hello Everyone,
I want to know that using multiple meshes affects the game performance or not.
In my case I’m using a FP Hand where the player may use different gadget/armor on the character’s forearm so, I have two options(as far as I know)

  1. make a full hand and add the other mesh(armor) on top of it.
  2. cut the polygons that are not visible(under the armor used )

Please suggest me which process is better with some explanations if possible.
Thanks

okay as no-one replied this question but i recently caeme to know that the second option is the better choice as there we are saving some draw calls from the deleted triangles. Hope this helps someone :smiley: