stutter and modules ?

Hello,just wondering if .dll files in the modules folder could indeed be cause of stutter.As you might know some files get installed into the modules folder by 3rt party addons. So far I have some stutter and wondering if any of these are known for creating problems:vimacore2004.dll (installed by lago's tornado refuel)traffinfo.dll (can't remember the spelling)traffictoolbox.dll (mytraffic2004 apparently from fs2004sdk)airport chart viewer.dll (airport chart viewer v5)f1_view.dll (flight1 mouse viewer)bglman.dll (f-104 cloud9)fsuipc.dll (guess what)fssound.dll (beta for fs2004)thank youLuca Zappalap.s.Perhaps I should go back to the stable 'old fssound.dll (adding the oldmodules in the fs9.cfg)... what do u reckon?