[EDIT]
Fixed the download extension having been changed to .RAR from .PDMOD.

Lowers the quality of the shadows for PD:TH from the default of 2048 to 1024. Based off LASTBULLET_Milomattkun's mod, which can be found here:
https://modworkshop.net/mydownloads.php?action=view_down&did=398

His profile is in the license section.

INSTALLATION (section by LASTBULLET_Milomattkun):
To install this modification you're gonna need Bundle Patcher 1.12, you can find it on zabb65's payday 2 modding repo under
pdthmod_tool.zip name. This one is highly recommended to install PAYDAY: The Heist mods.

https://bitbucket.org/zabb65/payday-2-modding-information/downloads