Here is my dxdiag
@Sweetie_EF Please try using DirectX 11 mode rather than DX9, which is what I believe you're using given the game's default behavior. But you can check at the Main Menu: the DX mode will show in the lower-right corner, after the version number.
There are two ways to do switch to DX11. One is through the Nvidia Control Panel. Right-click the desktop, select the CP, then Manage 3D Settings > Global settings, and choose the high-perfornance Nvidia processor rather than auto-select.
If you don't want to use this method, open the EA App game library, click Sims 4 > Manage > View properties, and add -dx11 to the command line box.
Either way, confirm the game is using DX11 mode at the Main Menu, then see whether the problems are still present.
If you're actually already using DX11, switch to DX9 instead, just as a test. The -dx9 command line argument would work, as would checking the box in graphics options (if it's there) for DX9 mode, to the right of post processing.
