Then I think it's not working properly in 4.14.33. I did try adjusting the cpufrequtils file. e.g.: 200 to 1200. Frequency was shown as 1200 all the time, but I saw rapid transitions between a lower frequency and 1200 in the transition table.
something wrong with it I guess. However I'm using the legacy ( 4.4 ) and frequency scaling is working in that kernel as expected.