Session Driver Performance

Hi,

After upgrading to Laravel 5.4, my session drivers stopped working in cookie setting and I have switched to file setting. After changing to file driver, my servers performance and response time degraded in a massive way. I also use redis as cache driver, do you suggest using redis as session driver or is it better to use cookie setting. If cookie is the best option, what could be the reason that cookie driver is not working. I am also open to the other solutions as well.

Thanks.