Bulky fadeouts when working with dmx fixtures

[alt234]

Whenever I try to control fixtures with Resolume pixel mapping, I get very poor response. The clearest situation is when doing a fade-out, for example, from red 255 to red 0. Below 40–50%, the fixture behaves randomly, dropping from that level to 0% in 2–3 steps and looking bulky. Do you know why this happens? Is there any solution?

[Zoltán]

Might sound counterintuitive, but try lowering the output frame rate, the fixture might not be able to handle lots of data coming in.
Also make sure not to use Broadcast.