response time get slower 

Hi People!
I am working on a small brain (like 200 triggers) and  RS response time goes slower and slower each time it responses, talking about 20 or 30 questions.
Simple triggers obviusly response in seconds, but allways takes a little more ms than the last one.
Complex triggers takes 2 o 3 seconds more than the last question.
Is this an RS issue  or a begginer issue?
Thanks in advance..
rv
