The Project Origin (World Origin?) is not adjustable.
You should be modelling close to the Project Origin at all times.
You can have problems in Archicad if you model a long way from the Project Origin.
The User Origin can be repositioned and is simply a reference point for you to work from - it will not affect the Project Origin.
If your model is far from the Project Origin then try moving the entire model closer and see if that helps.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10