Problem with Trackpad and Mouse after 10.10.4


hello,

have upgraded 10.10.4 on imac. encountering problem have never had before. have both apple trackpad magic mouse. use trackpad. since upgrade, both of these input devices have become "flaky". find when trackpad laggy, flaky, jumpy , slow, can switch mouse , work few minutes when trackpad acting up. mouse might have same issue , can switch trackpad , work while.

basically, has happened both of bluetooth input devices. i've tried deleting trackpad bluetooth connections , re-adding again. still same problem.

tips try?
 



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