If you turned on the shaders and activate fluid blood, you can see that the blood will look like droplets and will leave blood stains on the floor not like when you disable the shaders, the blood will look like circles and doesnt leave stains on the floor.
To increase performance, you can remove the shaders by going to setup>options> uncheck the shader
You can also check this threads:
Game - Performance - Toribash Hardware Requirements & Updating Drivers
3.9 release post your system specs and performance.