Laptop lags while gaming

sambi97

Reputable
Jun 28, 2014
1
0
4,510
I have a hp pavilion dv6 6155tx laptop.
Cod modern warfare series runs fine but recently while i was playing black ops and black ops 2 my laptop lags.

Laptop specs,
4gb ram(2.5 usable)
Ati radeon 6470m
i5 2430m 2.4ghz
May i know what the problem is?
And please do suggest the component that should be upgraded?