Will large maps and complicated parts in ReplicatedStorage cause lag when not loaded?

Large maps in replicated storage should not cause lag to any players, the reason for this is that none of the players computers are forced to load this until the server wants them to see it. This being said, large maps in the workspace can cause lag because it is putting their computer to work to load up all the parts.

Yes and no. It will take longer to load up the place, but the models are nothing but a location in memory until they are loaded in.

Hello. Let me explain. When you place parts in replicated storage, they're downloaded when the game is launched, as same as any other asset. But, once the assets are loaded, they won't charge until they're added into the Workspace. So, parts that are in Replicated Storage will load when the game starts, but if you're afraid of that, for example if they're lots of particles and meshes in RelicatedStorage it may lag the game, don't worry. things in ReplicatedStorage won't load until they're spawned, meaining that they won't lag the game while you don't load them.

As a summary,

No

xD

No it won't. It won't because it is inside replicated storage, so it is basically being stored, kinda like how models are stored in the toolbox. It will not cause lag. If this helped, please accept the answer!!