You’re right in the issues the sim has, rather have slower progress then the feeling of step backs, even when there is a huge leap. The bad often overshadow the good, especially when there are users experiencing really bad things.
I would not say the sim is resource locked, i’m seeing comitted memory for the sim as close as to 17GB (only RAM), with additional 5GB VRAM budget (RTX 2060). See: [CONT] Official Discussion: Hotfix 1.18.15.0 - #239 by scriptkid. The comitted amount with the video budget amount exceeds the combined amount of the xbox. Comitted memory is memory promised to the sim because the sim asked for this reservation.
What i would say is that it is resource limited (culling etc…)