Nah this isn’t true. If you gave the devs a free month I’m sure they could optimize the hell out of things. The issue is there are deadlines and higher priority items. You can technically play cities 2 unoptimized at a lower fps and graphics setting, you’ll have a much worse time playing it if features are incomplete and full of bugs.
They simply didn’t have the time to get to optimization
God forbid they offer goods and services in exchange for money