@kalirodak That's the information I was looking for. The system is using the Microsoft Basic Display Driver, which will make Sims 4 and any other graphically-demanding apps run extremely slowly. The question is whether the computer actually has a proper graphics card or not. You can check in Device Manager (click Windows key-X and select it), under Display adapters, but if you don't see one, you'll want to open the case and have a look.
No GPU means this is not a good choice for gaming. But if the motherboard has a PCIe x16 slot (do a google image search if you don't know what to look for), you could install a used card for a lot cheaper than getting a new system. Please check the power supply's wattage first though—it might not be sufficient to support a graphics card and the rest of the system's demands. While that could be upgraded as well in theory, in practice, OEM systems like this often aren't compatible with standard components.
If the PSU is around, say, 400W, you could install a graphics card that does NOT need a supplemental power connector, for example an Nvidia GTX 1050 ti or some models of 1650. They should be relatively cheap given their age and what's currently available but would also run Sims 4 on high or ultra graphics settings. A GTX 950 would also be okay if a bit slower, as would a GT 1030, although you'd want to make sure you were getting the GDDR5 version of the 1030.