Graphics look bad. Jagged Edges.

@daniiona  Does it make a difference if you switch between fullscreen and windowed fullscreen modes?  Does it help to set image sharpening (in your settings screenshot) to on, or to off specifically rather than letting it pick up the global setting?  The global setting can sometims allow the program itself to overrule the Control Panel, but that shouldn't happen if you specify a program setting.

You can also try disabling the Alienware Command Center in the Task Manager before launching the game.  The Command Center is throwing errors, and although it might not have anything to do with Sims 4, there's no harm in trying to play without it.

Even though it's unlikely to be affecting the graphics in Sims 4, it should be noted that your C drive is quite low on free space.  It's a good idea to clear up at least another 10 GB; try clearing out the Downloads folder if you're not sure what else to delete.

If none of the above works, you could try installing a slightly older graphics driver.  Yours is quite new, and perhaps it triggered this change.  You'd need to clean uninstall the current driver first; let me know if you need instructions on doing so or a link for an older driver.