I am an IT graduate and can tell you that what you have written there is total gibberish. VPNs only add latency, not lower latency. The reason is because you are adding an extra nested packet header to every communication from the game which not only takes an extra memory copy but also requires transmitting more bytes. Will the difference be cognoscible? Probably not however seeing how your statement was based on VPNs doing the opposite it is defiantly worth mentioning.