You can adjust the blink delay in VoidMod settings, you must load the save again to apply the changes.
First you need either shimloader or UE4SS, and VoidMod by Gato
If you're using UE4SS, make sure BPModLoaderMod : 1 is set to 1 inside mods.txt located in the mods folder exctracted from UE4SS zip file, or mods will not work
Extract IcanBlink.pak from the pak folder into <Game Directory>\VotV\Content\Paks\LogicMods