Lag issues during Build mode sims4

@MzKiaara  Thanks for providing the dxdiag, which lists a few Sims 4 errors related to a component of Windows that handles audio processes for DirectX.  (If that doesn't mean anything to you, don't worry about it.)  So please start with a couple of basic checks of your Windows system files:

• Hit Windows key-X
• Choose either “PowerShell (Administrator)” or “Windows Terminal (Administrator),” whichever option is offered
• Inside the window that appears, copy and paste “DISM.exe /Online /Cleanup-image /Restorehealth” without quotes, and enter
• The system will start validating soon. If it throws an error, please list it here
• After it reaches 100%, hit Windows key-X again
• Again, choose “PowerShell (Administrator)” or “Windows Terminal (Administrator)”
• Inside the window, copy and paste “sfc /scannow” without quotes, and enter
• Post the message you receive here

Restart your computer, hit Windows key-i, select Update & Security, and click the box to check for updates.  If any install, restart again afterwards.

Next, please manually reinstall DirectX 9.  You don't need to uninstall anything; just download the installer and run it.  More detailed instructions are here (Sims 3 thread, but the process is the same):

https://answers.ea.com/t5/Technical-Issues-PC/Sims-3-launcher-won-t-open/m-p/10711778#M247861

Please try again to play after that.  If you see the same issue, try a different sound output device that uses a different type of connection, e.g. the speakers built into your monitor vs. headphones connected via USB or jack.  Even if it's not a sound option you'd use long-term, it's a useful test.