Is there anyway to set the render default to composite instead of lens correction in the avid plugin?
It’s a dropdown list by name, so no. You still have to select what option you want to render in the dropdown menu.
As Mary says, you can not change the default, but I believe like all Avid effect, you could save the plug-in to a bin in whatever state you like. Then you instead of applying from the effect palate, you apply from that bin.