What I wrote above was pretty much the interaction I had with KUKA.
QuoteIf the maximum axis velocity configured for T1 in the safety controller is lower than the maximum possible axis velocity $RED_T1*max., the reduction factor is automatically reduced to prevent the velocity monitoring from being triggered.
This explanation is hinting why sometimes the T1 speedlimits are very very slow.
I sent them my files and they pointed out the relevant parameters and gave links to explanations of these parameters. (some xpert.kuka.com page that expires in 14 days)
But when I manually calculated and compared the parameters (3696 °/sec vs 30°/sec) they seem way off.
I didn't want to adjust anything just yet, rather to understand beforehand what all of that means. Because currently the maximum velocity 30°/sec is way way lower than the $RED_VEL_AXC * $VEL_AXIS_MA.