Finally after ages I found the solution which is on many pages on the net but not obvious and should have been standard or more common info!

Instant Solution:

Type this into the terminal (unfortunately the driver config menu doesn't have the option as itis hidden):

nvidia-settings --assign CurrentMetaMode="nvidia-auto-select +0+0 { ForceCompositionPipeline = On }"

Make permanent

Click "Save to X configuration File", choose your name and you can then edit your xorg.conf file.

Edit vi /etx/X11/xorg.conf

Change the metamodes option like so:

    Option "metamodes" "nvidia-auto-select +0+0 { ForceCompositionPipeline = On }"

    Option "metamodes" "nvidia-auto-select +0+0 { ForceCompositionPipeline = On }"
 

Sources:

https://forums.linuxmint.com/viewtopic.php?f=56&t=174237#p906436

https://www.reddit.com/r/linuxmint/comments/4rnwdl/screen_tearing_on_linux_mint_18/

http://www.thelinuxrain.com/articles/got-tearing-with-proprietary-nvidia-try-this

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