Graphics Card Not Recognised by TS4

IncomingNazgul​  The unrecognized graphics card isn't an actual problem and shouldn't affect loading times at all.  We can add it to the database, but it would be best to address the other issues first.

Did you bring over any Sims 4-related data from the old computer?  If so, please move or rename the Sims 4 folder in Documents > Electronic Arts and see whether that helps.

If it doesn't, try playing with the computer offline.  You can sign into the EA App and put it in offline mode, then disable wifi and/or disconnect the ethernet cable before pressing Play.  This is just a test; I'm not saying you would need to play like this in general.

Please also provide a dxdiag, for reference.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.