not all cards will OC the same. some cards with msi bios can be weird sometimes (artificially power limiting etc) so if you’re feeling risky you can try flashing another vendors bios, but its likely that’s just what its capable of.
It´s very strange, I sell msi gpus here in Brazil, and all these “ventus 3x” models have sensitive memories for a higher overcloack (1800 MEM), there are 16 units.
There are some videos on youtube showing that msi Ventus 3x with the same bios doing the 63mhs with MEM from 2400 to 3200