DELL INSPIRON N5050

HELLO GOOD MORNING.. I DONT INTEND TO REPOST MY TOPIC BUT IT SEEMS LIKE NO ONE ANSWERS MY PREVIOUS QUESTION..

I HAVE A DELL LAPTOP BUT THE BIOS DOESNT LET ME CHANGE THE SETTINGS.. IT IS VERY LIMITED.. I WANT TO CHANGE VIDEO MEMORY ALLOCATION BECAUSE I EXPERIENCE LAG IN CERTAIN GAMES.. ALL I WANTED TO DO IS TO ENHANCE THE GRAPHIC PERFORMANCE OF MY COMPUTER.. IS THERE ANY WAY TO DO THAT? THANKS IN ADVANCE.. I NEED AN IMMEDIATE ANSWER TO THIS QUESTION. THANKS A LOT.. SORRY FOR REPEATING THIS TOPIC.. PLEASE PLEASE PLEASE