Yes that would suggest there is an issue with your fuel pressure calibration or perhaps the regulator.
VE numbers will not always increase with boost, once you are at WOT they will usually stay much the same regardless of boost, but generally you will have the largest VE numbers around peak torque 100-110% around say 5000RPM.
It would be best to attach your tune and a log of the limit happening. I would say at a guess that oil pressure limit on GP limit 1 looks a bit optimistic for some engines, 300kpa @ 2500RPM...
Not really sure what you are asking here, but it would be unusual to have a min eff PW of 1ms. 0.4-0.6ms would be more typical values. With a min PW of 1ms you will likely never be able to achieve your desired air fuel ratio at idle.
