Hey, the only solution would be to add a limit to status effects, but that would also take away part of the fun...
The game actually had a system like that before. It was implemented in 1.6. It combined damage and healing into single instances before spawning the text, but I disabled it in 1.9 because I realized it was displaying absolute nonsense.
So I will either have to redo that system or add something like a "disable damage numbers during combat" toggle setting.