Having jagged shadow issues in the sunlight

Hello! I've been teaching myself how to make cc the past few days and this is the one issue I can't troubleshoot.
The table I created looks fine until it is hit by direct sunlight. 
Some things I've tried: removing doubles and importing a blank specular with a black alpha channel.

Here are example images: imgur.com/a/iF6lFiR

And my package and blender files. www.dropbox.com/sh/y98ut86e991iqqj/AAB2f451lJcygK1Cukh5J8Baa?dl=0 

Thank you!