Hi,I have my cloud density slider set at 65,dowwloaded the alternative cloud package,but still get very abnormal low framerates (really stuttering) with some cumulus clouds from FS Sky World SE)what could be the cause?what thickness limit have you guys set for cumulus and Thunderstorm in FSUIPC?

Go to your hardware options and turn of anti-alesing turn of reflections for your aircraft as well AA is a 10fps hit in FS and relections are about 5fps well they are on my system...i have my clouds set to 75 and run about 23-30fps...even with extremly dence auto-generated secnery.

I still get extremely low framerates with the new FSW clouds and dunno why:I even set my clouds slider to 40 and nothing changedany help appreciated,this is very frustrating

You may be operating on the edge. The clouds pushed you over. You must experiment with the sliders - all of them. They cause no harm when changed.Dick