@SavJames29 You can't just move CC, and doing so wouldn't fix your lag issue. The game lags mostly based on how your computer GPU and CPU can handle the amount of packs, mods/CC, Sims in a save, and items on a lot.
Is there a way I can move my game, CC, and mods to my external hard drive, so that when I plug it in, everything is stored on the external drive and not on my laptop? Then, when I unplug the external drive, none of the files will be on my laptop, helping to avoid lag? Thank you.
@SavJames29
Yes. For your user data you create a symlink from the EA/TS4 folder on the external drive to the local Documents folder. Are you using a Mac or Windows machine? Instructions differ for each OS.
For the game installation you simply change the location in EA App.
But why do you think this will help with lag in your game? As Luth has already told you, it won't. All it will do is free up space on your internal drive, nothing more. You may notice a temporary bump in performance as your computer will have access to more virtual memory using the internal storage you have made available but not overall performance increase. The issue is most likely your computer hardware struggling to run the game.
