So many numbers, and what in the word is a CL, anyway?
www.howtogeek.com
Fairly basic but if you have no clue about any of the numbers I'd start here and start reading.
A rough rule of thumb I heard eons ago was "for each CAS number you change, you are basically going up or down one step in speed". Meaning in terms of overall bandwidth, CAS 16 3200 is similar to CAS 15 3000. (considering how close 3200 and 3000 are, you might need to go down to 2933, or maybe even 2666. I'm too lazy to do the math and find out.) Who cares if you can get to DDR4-5000 if you have to change the CAS timing to 52? You'll be spending so much time waiting for the line to clear the voltage that you'll negate any increase in bandwidth.
I only pointed out the CAS difference because you asked if it was running right. According to the images you posted it's running slightly slower than it should be. But remember the bolded part from the quote above. Memory benchmarks will show large differences in things. But real world apps won't show much of any difference at all. Faster memory access and bandwidth will speed up your PC, but all the work still needs to be done by the CPU. And while that is happening all that memory speed is sitting idle. I'd try changing it, but if it fails for whatever reason it's not like your PC will be only half as fast as it could.