Some best way to optimise is to read your data and work on them, Here are few things we did -
- Use Broad Keywords
- Cut out keywords regularly with high CpC
- Using negative keywords to cut out unrelated clicks and high cpc keywords
- Keep adding new keywords
- Optimize your Ad copy to get better CTR. Our Average CTR is 32%
- Work on page speed and content quality to get a Quality Score above 8 at least ours are 9/10
- Keep Decreasing Max CPC Everyday as your budget keep getting exhausted
- Run only on Mobile placement to get better results as currently 90% users are mobile users.

