Denuvo is the DRM tool of choice for today's AAA titles ( and has already been broken by those that can ). The DRM in a game can be a huge problem and tomb raider is an ubisoft game too .. remember when they dropped the last Simcity title? It was a DRM train wreck lol.
Good news is that the denuvo doesn't usually get in the way of playing your favorite game offline with CH trainers.
In short ; No way to turn off the DRM, but naturally there are work-around's
Hope this helps.