Since all effects run on ReShade, the question is rather whether ReShade is safe to use.
There is no provably documented case of users being banned for using ReShade ever. It contains extensive measures to prevent online cheating, is officially whitelisted by several anticheats and most games that disallow it now refuse to launch rather than outright ban users. A good rule of thumb is to visit the social media site of your choice and check if people are using ReShade on the game successfully.
Our effects are also safe to use on slower computers, although they might not run fast enough. There is no functional difference between a game + our effects vs. a more demanding game.