Yes, if you lower some settings in Vue, the native renderer's settings will be lowered accordingly, so the "Adjust native renderer settings" option does indeed match your  Vue render settings. In your case, you should've increased your MR settings to match Vue's. But as I said, Vue doesn't do the anyti aliasing. It just tells MR that to match it's settings, MR settings must be higher. And when you separate render settings, Vue will still check that MR and Vue will perform a "consistent" render, hence the warning. If you do decide to render anyway, I agree the message should not appear at every frame, but that has to be suggested to e-on directly. Maybe this is intended, I don't know, ask them.