why when im playing dota my laptop got  a little bit lag , but my ping is nice. my fps is around 30-50 then my loss sometime 0-4 and my kbps is 100++ but sometime 0

This is the wrong forum. Posting in the correct forum will expose your question to  other users with the same type laptop and maybe lead to a solution.

Correct forum > Drivers & Software

Wrong forum as already indicated but you also need to include your PC information and any steps taken to fix it as well as any other pertinent information such as network specs including speed, router if being used, WiFi or Ethernet, WiFi protocol being used, etc.  Anyone looking to help needs to know this information.