I upgraded to Mavericks around Nov, I too experienced a lot of Beach Balling and for the first time ever my Mac became unresponsive a few times which I have never experienced with ANY of my Apple products.
I was on Leopard and had upgraded to Snow Leopard a year ago never did get to Mountain Lion.
I upgraded my Macbook Pro Late 2008 unibody to Mavericks (Keeping all existing content i.e. NOT a clean install) and had all sorts of problems so much so I was tempted to downgrade again!!!
I persevered and started to remove several Third Party applications, can't remember which ones, (but none had come up as non-compatible when doing the pre install). just lately things seem to have calmed down and I don't seem to be getting any more Beach Balling or crashing, fingers crossed......
I was on Leopard and had upgraded to Snow Leopard a year ago never did get to Mountain Lion.
I upgraded my Macbook Pro Late 2008 unibody to Mavericks (Keeping all existing content i.e. NOT a clean install) and had all sorts of problems so much so I was tempted to downgrade again!!!
I persevered and started to remove several Third Party applications, can't remember which ones, (but none had come up as non-compatible when doing the pre install). just lately things seem to have calmed down and I don't seem to be getting any more Beach Balling or crashing, fingers crossed......