Adobe Substance 3D Painter crashes after 5-10 min of work

Hello everyone, I have a serious problem: after approx. 10 mins of work (mainly basic texturing or selecting different brushes, size and/or roughness) the app freezes with white screen, and need to close the app from apps manager interface. 

FYI, on startup it appears the following message:

[Engine Configuration] Export resolution clamped to 4k. More than 2GB of VRAM are required to allows 8k export (128MB detected).

[Resources List Model] Icons memory budget set to 100MB.
[Plugin - resources-updater] No project open, resources updater discarded

I have a HP pavilion x360 convertible14m-dy0000(23635AV) 8gb ram, i7 processor and Intel IrisXe Graphics card.

How could I modify / change the pc or program settings in order to be able to work flawlessly without freezez? is there a driver o software fix i should download and apply?

If it can be of any help i'm attaching the log I got last time the program crashed.

Thanks a million for your help.