I would question how fine you are crushing your grain. Don't buy into the old wive's tale that you need a finer crush with BIAB in order to get decent efficiency. I have my barley crusher using the .039 setting as it came from the factory and I have been hitting my expected OG's without issue.
I do add hops to a strainer bag before adding to the boil.
Beyond that, I don't care how much trub I create because I pour everything from the kettle into the fermenter. After 3 weeks in the fermenter, the trub compacts down to a thin bottom layer that is easily left behind when I rack to a keg.
Trub ain't poison, and I haven't found anything that says it affects beer flavor when you are only leaving your beer in the primary for less than a month.