@tropicalicz A low-resolution image in Map View is not unusual by itself, although there's clearly something odd going on in Riverview. Try changing your in-game resolution to 1920x1080, the native resolution of your screen, or a supported scaled res (anything with a 16:9 aspect ratio is worth trying). Please also test in fullscreen mode—graphics rendering can be a bit different in windowed mode, especially for older games. It doesn't really look right on my machine, although fullscreen is fine.
I don't know whether having draw distance at the max setting would help, but it's not a particularly demanding setting relative to some others, so it's worth trying. In fact, you could max out most of the settings briefly and see how the game looks. Your framerates might be low, but you'd at least get a good idea of how the game looks on max settings while the camera isn't moving.
If you don't notice any difference, delete options.ini from Documents\Electronic Arts\The Sims 3 and let the game generate a new one. When you change graphics settings, do so at the Main Menu, and quit to desktop before launching the game again. Sims 3 doesn't respond well to most graphics settings being changed on the fly, although fullscreen/windowed and the resolution are both fine.
If these steps don't help, try reinstalling the 2005 VC++ runtime and DirectX 9, both of which Sims 3 uses. Both crashed at least once, and while that might be related to the game itself and not the underlying resource, it's worth being thorough. DX9 is easy: you don't need to uninstall anything, just download the installer from Microsoft and run it.
https://www.microsoft.com/en-US/download/details.aspx?id=8109
For the VC++ runtime, hit Windows key-i. select Apps, scroll down to the Microsoft 2005 Visual C++ Redistributable (x86), click on it, and Uninstall. (Don't touch any of the other runtimes; your computer needs those for other purposes.) Then download and install a new copy from Microsoft. You only need the x86 version.
https://www.microsoft.com/en-us/download/details.aspx?id=26347
If none of this makes a difference, please copy and paste the first 40 or so lines of deviceconfig.log, also in Documents\Electronic Arts\The Sims 3, into a reply here. You can stop when the "Options" section starts. This shows how the game rates your hardware. Your user and machine names are about 25 lines down, so delete those if you want, but nothing else in the file is personal information.