Cheers.
Seems to have sorted it for now, had a fiddle with settings and restored a few defaults.
Always start with HIGH settings set at Default. Disable all graphics settings other than Antialiasing. Slide all quality sliders to the left. Turn off Dynamic Sky. Then play a few holes. If all works smoothly set the quality to Ultra High with the same settings mentioned above. If Ultra High works well, then pull the quality sliders to the right, just a little.
Vertical Sync causes more problems for players of this game then it helps. I know. I have adjusted 16 JNPG games via remote connections.
Examples: If your graphics card is powerful, skip the HIGH settings and start with Ultra High.
Disable Dynamic Sky
As of August 2019, my scores have improved since disabling Dynamic Sky and lowering Quality Settings.