weird lag issue on my mbp 13'

[crottychop]

ok so i bought my mbp 13' last summer and now when im using it i notice a weird lag issue. its really hard to explain so ill try my best.

when im watching a youtube video, every 5-10 seconds of watching, the screen then freezes, i can still hear the sound but it freezes for about 3-5 seconds and then resumes again, but it skips those 3-5 seconds it was frozen for.

when im online, typing something, such as this post, ill type but not see any letters, and then after like 1-2 seconds everything i typed will pop out all at once and not one by one,
and when going on internet sites, theres pauses every 2-3 minutes...
like when im scrolling down a page, it will stop scrolling and then jump all the way down..

i know this isnt very specific but any help about fixing this lag issue will be very appreciated.

thanks

 

[krimsen]

Open up Activity Monitor and look for high CPU usage. Might be something running on your machine thats using up your processors cycles.

 

[Intell]

I have similar issues with my Blackbook and mid-2007 iMac. Are you using FireFox?

 

[crottychop]

yea im using firefox... does the type of internet you use affect it ?
because i have a pc desktop at home and i use firefox and it runs no problems....

 

[Intell]

yea im using firefox... does the type of internet you use affect it ?
because i have a pc desktop at home and i use firefox and it runs no problems....

I don't think the type of internet affects it. It lags whether I'm on DSL, cable, WiFi, or Ethernet. Some site lag more than others. Macrumors lags about a 6 out of ten. Engadget lags an 8 or 9 out of ten.