slow load:
- close the outliner and material tab before opening a document
- ensure that the model is near the model room origin especially after importing a DXF/DWG (or use the concerning import option to avoid)
- purge affected documents by “Window > Model Info > Statistics > Entire Model > Purge Unused”:
- if purging doesn’t help either, you could also unhide everything, switch on all layers, select all and copy/paste to a new document
crashes:
- try if disabling all plugins allows to open the model info
- update the graphics card driver first
- drop the Quadro P5000 (if not req. by other applications) and switch to e.g. the GeForce GTX 1070 Ti (being faster anyhow) second