Process reselleradmin and Cpanel

Sometimes, i access to the control panel very slowly through http://domain.com:2082, y have studied the problem and i always see a process called ' reselleradmin ' that it is spending a lot of CPU, when i kill it, i access to the control panel perfectly.

What do this process do ?
How can i solve this problem ?

Thanks and regards.

 

Nobody ?

Thanks in advance.