[Troubleshoot] LG 27UD68-W 4K 27' Monitor 30Hz to 60Hz (Mouse Lagging, Low Graphic Problem)

I recently upgraded my monitor to this LG 27UD68-W 4K 27", had a few problems at the beginning such as mouse lagging and low quality graphics, the solution is CABLE.

If you are running this monitor on your Macbook Pro and facing the same issue, chances are you are running 30hz instead of 60hz.

Thunderbolt to DisplayPort Cable mentioned in this video:

LG 27UD68-W 4K UHD 27" Screen LED-Lit Monitor:

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