Just using some lasso command + crossing option enabled in a large file and it seams that it takes forever to do the selection (even more than saving the huge file). It’s true that the amount of geometry in the file is huge, but the number of objects close to the selection lasso is relatively low. It seams that the tool is exploring all the model to find intersections and report them back after that.
A GH/scripting approach is possible but as the amount of panels to correct is too low, supposedly was faster to do it just manually.
Find attached a capture with the selected objects.