Witcher 3 is a great game, however, the game lacks a loading bar during the game is loading. Luckily, there is a small tweak that can enable the loading bar in the Witcher 3 so the people can know how much the game has loaded. Check out below how you can enable it below.
go to USERNAME\Documents\The Witcher 3\ open user.settings. Search for these lines:
Now set these values to: