Operations executed on the User Interface thread are using {0:0.00%} of the CPU. Go the Performance Warnings menu in the ...

Operations executed on the User Interface thread are using {0:0.00%} of the CPU. 

Go the Performance Warnings menu in the navigation toolbar and select the CPU Usage view. Inspect the threads that are using the most CPU. Select the User Interface thread and from the CPU Usage view, select the Functions option to identify the methods that are using the most CPU.