FulliGonzales:
At my first runs, I tried it the normal way with latch only high when data is coming and OE high when the outputs should be active.
But it also did not improve the intensity of the LEDs.
The outputs should always be enabled - unless perhaps you want to use some form of PWM brightness control. That's exactly what the latches are for - they hold the current data until you have shifted in all the next set at which point the switch from the last pattern to the next is immediate with no break.
FulliGonzales:
I would love to use the MAX7219. I even bought one to test it. But the problem is, all LEDs are common Anode.
So what has that to do with anything?