I have eliminated the lags, by using one of the many utilities created by Vulgo and other users to patch the older Nvidia drivers to work with 10.13.2, 10.13.3 and now 10.13.4. The entire point of my post was to bring attention to the fact that none of this is mentioned in the Original "NVIDIA Releases Alternate Graphics Drivers for macOS High Sierra 10.13.X" posts. Just seems a bit cruel really to hide the reality of the situation (whether intentional or not) to the uninitiated, considering the affected hardware is at the top of the "Buyer's Guide". My system is rock solid, but I could have saved myself hours of trouble shooting had the issue not been ignored in the "NVIDIA Releases Alternate Graphics Drivers for macOS High Sierra 10.13.X"posts. Hopefully with the inclusion of AMD RX drivers in 10.13.4 we can all move beyond this nuisance, but I will not be holding my breath.