hey there~
i just wan to ask how to overcome this problem...
when i played dotA at flying spaghetti monster the game always delayed...
for example when i order my hero to attack the enemy...
it will delayed for 1-2sec...man..always die bcoz of this shet..

use quiethdd & disable apm.. update ur gpu driver to latest!

u mean i must upgrade my laptop??
this is the current spec n i think this is enough to play dota:
Intel Core I5-2410M
NVDIA GFORCE GT 540M
4GB DDR3 RAM
640GB HDD

delayed can caused by line internet plus ur memebership.. it affect

if i using WIFI at home to play dota can cause lagg?

What ISP are you paying at the moment?
To play online game, wired connection are preferred. More stable, But if you're using UNIFI, it should be not a problem. Because, Unifi Router is N version.
So, I believe you're using something else. Not unifi.

Your computer already enough to play the latest game. Which mean, there is no problem at all with your hardware.

My suggestion is :

1) Forward your port 9113-9114 (If I'm not mistaken)
2) Use wired connection.
3) If you still have the above problem, you should upgrade your internet speed.

P/S: You can try your computer performance using other people internet. Maybe your friend.