This was already suggested some years ago:
You did address this issue and improved certain aspects of it since then. But I feel like it isn’t enough. I’m currently playing a Void Knight where spell effects flying all over the place. Paired with higher density monos and the new weaver “clutter”, I’m completely lost and unable to process what’s going on on my screen. Even worse, I get headaches fairly quickly.
So, I suggest a slider that allows us to reduce the visibility of VFX (particle effects, etc.), at least for the player’s own skills, and thus improve gameplay. I appreciate your effort to constantly and meticulously tweak those things on a per skill basis, but I suspect that you’ll never be able to resolve all of it for all of us and thus a slider would be an easy and efficient alternative.