Doing a lot of flights today i noticed that, for some unknown reason, the frames are going down from 80 to 20 sometimes. SMP is then taking 75% of render time as the plugin admin tells me.
After force reloading the clouds most of the time it goes back to normal framerates. Maybe it is one type of cloud constellation which tanks a lot of frames. as I have no clue about what is going on I will keep an eye on it if I find the cause. My setup uses SMP, RWC and FSGRW.
>90% of time frames are great even with cloud draw distance maxed out. So this is not a big issue.