The more Packs you have installed, the more demands on your machine. Bear in mind too that when EA state the requirements for Game/Stuff/Expansion Packs they are only basing this on the Pack and the base game, they do not factor in any additional Packs already installed. If your game meets the minimum requirements then you should be able to play but may need to keep all in-game graphic settings on low. There is a big difference between the minimum requirements and recommended requirements for the Sims 4.
