Keyshot Low CPU Usage

[HamedHem]

Hi Guys ,
I have a serious problem with thinkbox deadline keyshot submitter script .
Here I have attached deadline render script for key shot but I have a problem with this , when running script from keyshot console the CPU usage keeps around 14 % but when render the scene directly from keyshot CPU works properly 100 %.

CPU Model : Dual Xeon 2699v4 ( I have tested the script on i7 5820 K and again the same problem 70 % max CPU usage )

Notice that  this happens file to file , for some of the files works fine but some other not , ( let me know if you need a file to check this ) .

Really need your help to fix the issue ASAP .

Thanks in advance ,
Regards.