Will Decals and Guis not visible to the player make the game lag less?

I'm planning on making a script for a card game, but I don't want all the cards showing up at once because it would look gaucky and weird, instead choosing to hide them and have them only appear when needed. So I plan on hiding these assets and am wondering if I hide these assets will it make the game lag less therefore letting me put more in and making expanding the game easier in the long run?

Or would I have to have the script pull the assets from the serverstorage to do this instead of just simply setting visible true or false?