may be page <a href="https://cinelerra-gg.org/download/CinelerraGG_Manual/Tips_Improving_Smaller_Comp.html">https://cinelerra-gg.org/download/CinelerraGG_Manual/Tips_Improving_Smaller_Comp.html</a> in section where it talks about speeding up ffmpeg plugins  can benefit from direct link to specific section?<div><br></div><div><a href="https://cinelerra-gg.org/download/CinelerraGG_Manual/Speed_up_Ffmpeg_plugin_usag.html">https://cinelerra-gg.org/download/CinelerraGG_Manual/Speed_up_Ffmpeg_plugin_usag.html</a></div><div><br></div><div>also, I think usual _decoding_ tricks like lowres and skiploopfilter might work in opts files? (need to doublecheck) </div><div><br></div><div><br></div>