Thank you for all your replies. Yes it's a gaming laptop, has a button that makes the fan's make a lot of noise and running almost like it's a desktop.
Well I've tried it... and without add-ons it's awesome (obviously), but as soons as I do 737PMDG it drops. With a simple 1 runway scenery and 737 the fps are around 15 fps. For me, the airbus it's less heavier then the 737.
I believe the laptop isn't enabling the turbo, it's running at 2.3ghz, and I see the CPU it's running 99%.
So basically, I can't fly with this framerate, it's not stable, it goes to 25 and then drops, etc. If I was able to enable the turbo, it would get MUCH better, but unfortunately I can't.
Well, I have a question, FSX is old school and runs more on CPU, what about P3D? Didn't they fix a little bit more that part?