I weigh 140 lbs and have a 2014 C500F (non-ABS). The stock shock was not sophisticated but didn't pound me badly unless the pavement was really abrupt. Spring was well suited to my weight.
I did replace it with one from a 2017 GSXR600, much better. Paid about $40 on eBay. This shock only fits in non-ABS bikes, don't know about 2016-2018 model years.
Shock from GSXR before 2010 model year may raise the rear of our bike more than recent ones.
The first post in this thread describes replacing shock with a rebuilt, re-sprung shock from a Honda CBR600F4. Many people have done this. Very likely the person who does the rebuilds can say if it fits the '17.
I wonder if there is a problem with the stock shock on your bike? You could buy a take-off on eBay for a few dollars if you want to try another stock one.
If the rear of the bike was lowered, that affects spring and shock rates. Don't know how much.
2014 CB500F: GSXR600 rear shock, Traxxion fork emulators+springs, Kuryakyn Throttle Boss, IDEA Gear Indicator, Slipstreamer S-06 windscreen, SW-Motech handlebar risers, LED tail light, rubber tank side pads.