As I understand it, views are not supported in the sync gateway. Its a feature you have to switch on, although I’ve never managed to get it to work. I was told if you do switch it on, then the stale=false is the default setting, hence the indexing performance concerns. I think the short answer to your questions is no, and you may have to work around the problem.
I ended up creating a small application server that exposed a few indexes in my SG bucket. Or maybe you could just sync the data to your clients and create the view in couchbase lite?