Well my suggestion is to edit the individual submarine dat files...specifically you can delete, using the S3D editor... most of the nodes that create the nice bubble effects coming from the subs when underwater ...leave about 10 so you still have a few. You really don't need to have 30+ of those generators going...there kind of inacurate eye-candy anyway and they can kill your framerates.
I did this when facing similar slowdowns using the external cam underwater...and it made a real improvement.
Hope this helps you.
Last edited by Canonicus; 08-10-09 at 10:40 PM.
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