The best restaurants serving Vietnamese food in undefined Portsmouth South East

Having been to Vietnam over the summer, we have been trying to find somewhere with authentic food and this place did not disappoint! The food was absolutely delicious and my personal favorite was the green papaya salad which instantly transported me back. We did have some issues, hence the 4*. Service was slow, with starters being sat finished in front of us for almost 15 minutes (bearing in mind there were only two other tables there and one waitress was seen sat on her phone scrolling). We waited 15 minutes for our banh mi to come out and mine was served with the bottom burnt - cue a further wait for another to be served. We did appreciate the staff apologising for the wait. I'm sure we were just unfortunate based on the amazing reviews we saw prior to booking, we'd definitely still try this place again!