Hi,
with the latest 4.8 engine the Wind Strength doesn’t seem to affect anything once it’s something other 0. With the update our APEX cloths elements are all trembling quite fast and we can’t make the cloth move as slow as we would want it to. The Wind Speed also doesn’t affect the strength of it and the cloth will still tremble and move despite it being at 0.
I’ve attached a test project which you can test it with, just try using different values of Wind Strength, but the cloth will always act like the wind is really strong.
You should be able to check it against 4.7 where the wind worked as intended and you could control the strength of the effect.