Sims 4 is lagging

@juliett006  Are you playing in DirectX 9 or 11 mode, and does it help to switch?  Here's how:

https://answers.ea.com/t5/PC/DirectX-11-DX11-for-The-Sims-4-A-Step-by-Step-Guide/td-p/13711976

Additionally, does this happen in a new save as well, with no mods or custom content?  Please test if you haven't already, and use one of the default builds in a base game world.  For a complicated lot, the Spencer-Kim-Lewis household in Willow Creek is a useful test; for a less-busy lot, any starter home that a new sim can afford would be fine.

Please also run a dxdiag and attach it to a post, for reference.

https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/