I still have almost 350gb of space on my 500gb Late 2011 MBP and its being incredibly slow in intervals. Even just when typing sometimes it lags up horridly and i have to wait a good 6-7 seconds for the computer to catch up with what im typing. It frequently has these 6-7 second stall moments where I have to sit there and stare at it and wait for it to catch up, if I do anything it will completely freeze up.Then there are blocks of time where its alright. I do let my MBP sleep rather than shutting it down most of the time but even when I do a shut down its no better when I start it back up. It has had the logic board replaced one time about a year after I bought it. Sometimes the screen will involuntarily switch off and go to the sign in screen and itll take a few seconds for it to come back. The battery has 983 cycles on it but its normal despite the battery problem notification turning on a couple times and me taking it to the genius bar for them to tell me that its technically normal and doesnt need to be replaced yet. I also have it fully updated to Yosemite. Do I just need a new computer at this rate? I really don't know what to do with this thing. It seems so useless sometimes.