is it normal that my fps jump 

is it normal that my fps jump from 30 to 9 while i use this program and when i not use it they are 120?  

Is the fps short for ‘Frame Per Second’? Normally Mudfish is ping related program while FPS represents the graphic related. If it’s really true, could you please check the mudfish processes at Task Manager?   
  
* mudfish.exe   
* mudflow.exe   
* mudrun.exe   
  

불행하게도 당연히(?) 아닙니다. ㅠ.ㅠ NAS 라고 보시면 될 듯 합니다.