Issue with Smoothing Causing Brush Stroke Delay

Hi all,

When using photoshop to create sketches, there is a notable delay when performing brush strokes, only when smoothing is enabled. I've looked about for solutions, and I have done the following with no luck:

• Updated to the latest (20.0.1 as of this post) release.
• Disabled Rulers.
• In Preferences > Performance, followed guidelines such as disabling graphics processor, changing drawing mode to basic, changing cache levels and tile size, resetting to default etc.
• Updated my Tablet Driver to the latest version.

I've noticed there is a new driver for my GPU so I'm giving that a shot too. My system settings are:

i7-4790k @ 4.00GHz

16GB RAM

Nvidia GTX 980ti

And my graphics tablet is a Huion KAMVAS GT-221 Pro.

I've managed to find a GIF that shows the issue: https://cms-assets.tutsplus.com/uploads/users/346/posts/24478/image/brushlag1.gif

https://cms-assets.tutsplus.com/uploads/users/346/posts/24478/image/brushlag1.gif

Any help would be greatly appreciated!

Thanks!