Using Crystal Reports 2011 on SQL Server 2014

Good Morning,

     We recently upgraded to SQL Server 2014, but have hit a snag using crystal reports 2011 , current version is 11.5.3.417. My programs are accessing alot of views not tables and they are not running as smoothly or not running at all.Has anyone encountered an issue like this ?

Should I upgrade to crystal reports 2013 ? Any ideas ?

Please let me know.

Thanks