Disclaimer I do not play with psionic specializations and I don't know how this would interact with them. But if you are also not playing with them this will help.

1. Go to steamapps\workshop\content\268500\2774354113\Config

2.Open XComLW_Overhaul.ini with a text editor.

3.Comment out the 4 lines under ; remove lwotc psi shards (to comment them out place a ; at the start of the line)

4. Comment out the 2 lines under ;shard gauntlet