Lag on 30+ fps

Ahmedanas37

Estimable
Nov 7, 2015
7
0
4,510
Hello friends i am new here...i have a decent lenovo laptop having specs
Intel core i 7 4700MQ
Radeon r7 m265 gpu
1 tb hdd
8 gb ddr3 ram

The problem is that when i play any game battlefield 4 for instance i get 60+ fps on low settings with 1366x768 resolution...but when i increase my gfx to high or medium it still gives me 40+ fps but the lag also...this causes the joy to be ruined.
I really want to get rid of this problem. things i tried to solve it :-
1)updated gfx drivers to latest ver (15.7.1).

2)tried over clocking but not much good result...

3)used game booster (razer cortex).

4)increased and decreased page file size.

5)used advanced system care pro and cleaned all junk and optimized disk.

6)tweaked BIOs.

7)changed windows.

8)Turning V-sync on and off.

Note:as long as the fps is more than 60 the game runs like heaven but when it decreases from 60 it starts to lag.