NVME wont link up at pcie x4 speeds, only at pcie x2 speed

Device is x4 capable. But it seems this notebook only allocates 2 pcie lanes to the nvme slot. Which cuts the maximum read write times to 1729 mb/s and 1628 mb/sec according to crystal disk info. Otherwise would be close to double those speeds. But practically i dont notice it being slow, boots in about 6 seconds max.
Of course when i ran the speed read - write test and noticed it was half my expectation I went looking for a reason, and I think I found out why.

hwinfo screen shot shows the link up speed. I updated bios, but there is no speed setting.
Notebook is Asus q525ua and seems decent, its not the greatest, but its still good enough.
Any thoughts on this?