Come on guys, you need to lose that obsession about visible vapor exhale! ^ ^
Lighting and room ambient air humidity level change everything... In the dark using a flashlight to shine the exhale, all vapes are cloud machines.
Now if you are talking about load extraction speed, some vapes cash a load faster than others, but temperature is the most important factor. Start above 200°C and your load will be spent in a few hits whatever the device you use.
That being said the FM are rather average-speed extraction-wise: the bowl is usually spent in 2 or 3 time-out sessions (so between 10 and 15+ minutes, 20 minutes at most) There are faster vapes available (Mighty/Crafty? Lotus?)
And with the FM5-Pro the main interest is to be able to do low temp levels. The more distinct levels you do the longer the overall session. If you do one 210°C level it will be pretty fast, if you do like I enjoy 173°C, 184°C, 196°C then 215°C in a row, the session will be longer (and IMHO it gives more time for your lungs to absorb more components, so you get more effect and on top of that you preserve all delicate terpenes and get the delicious taste)
Now we can't always afford a 15+ minutes session... but that's the beauty of variable temp control, you can adapt the device to your needs and your medicine!