does a low ampere adapter decreases laptop performance

[ahtisham.ahmed444]

Hello there.
I have HP Dv7 3085 with 1GB Dedicated graphic memory.4 GB ram.intel core i7 1.6GHz processor..I'm using 4.74 ampere adapter and recommended adapter is 6 ampere
My PC lags too much even refreshing sometimes takes a long pause.
Is low power adapter decreasing it's performance or its due to less RAM(4GB) or less CPU 1.6 GHz?

 

[smorizio]

with any pc you want now 8g as the min for the os.

 

[ahtisham.ahmed444]

So there is nothing wrong with processor?because I had i5 Asus 2.6ghz processor with 6 gam ram and that was faster than this one