Develop wordpress plugin for tracking visitor (compatible with caching and or cdn implementation)

Desc : Have Google analytic data pulling plugin, but this plugin make web slow down when it runs. So, I decided to develop own plugin for visitor tracking with good algorithm look like Unique Page View Google Analytic Value. Requirement - Tracking visitor unique page view (like Unique Page View Google analytic) which could handle fraud like robots, unfair page view - Hide tracking when login - Could works in cache and cdn - Create own table (contain post id and total view) since when using post_meta it very large - Not slow down website. - Having good logic and light code. - Explain the algorithm and result must +- not too difference to GA Unique page view We have many custom wordpress development and need more than 5 Developer to create custom task like this project, if you have good knowledge in Wordpress, Ajax, Js, Php, both front end and back end let's bid.