We got a 1 star review recently, after that our conversion hurt. PPC is not working with profitability because of that review, although no text review posted only 1 star rating, but our average rating below 4. here our concern is should we continue PPC with current budget or should we lower the daily budget to get profitability or at least BEP.

And how to get more positive reviews faster? so average rating will above 4.5

recommendations are appreciated.