Q Light Controller+

Hey there!

So, I've got small USB->DMX box, which is confusing me right now...
When it's plugged on into my old MacBook pro early 2011 with i7 processor and High Sierra OSX, every is fine. QLC works perfectly fine...

But when I try it on my another MBP ( Mid 2010 with C2D processor ) and High Sierra OSX, QLC Is laging, like it cannot sync with USB->DMX box...

I don't know what is causing it, maybe someone has the same problem?

Here's a youtube video with my issue...

https://youtu.be/U3JNbGlnJq0

Cheers, and thank you!
Have a good new year!

QLC+ version?

With processorless DMX devices your internal processor is responsible for the DMX timing.
Tweaking timing will fix your issues (on the slow one ... 2010 something??)
There are tons of posts dealing with this already
search for 'multi thread'