Change to 32 bit on the Sims 4

If you go to Origin Games then The Sims 4 the Game then Bin you will see (at least I do on my computer) TS4.exe and TS4x64.exe, I think TS4.exe is the 32 bit version of the game, double click on that to run it!.

Go to Origin, to your 'My Game Library', right click on The Sims 4, choose 'Game Properties', under the tab 'Advanced Launch Options' you'll find the option to switch between 32-bit and 64-bit.