Comment by Mashimo
I have a Pi3b in a 3D printer, and compiling the software, but also simply apt upgrade feels like it takes forever. Most day to day operations work just fine though.
At work we have a display with a Pi3 (not B) connected, just showing websites in rotation. Websites even with a simple animation are laggy, startup takes a few minutes.
Both of these usecases don't need more than 1 GB of ram, but I want to speed of a 4 or 5.
The 4 and 5 are pretty laggy too. An improvement, but slow.