What should I do to fix my unstable cursor?

My cursor is nervous. When I try to land on a spot, it is difficult to do. This does not to each use, it is annoying when it does. Also, downloading programs or websites is very slow. I have a Mac Book Pro. I took it to the Genius Bar for someone to check it for bugs or problems. I downloaded OS X Yosemite version 10,10.5.  Processor: 1.7 GHz Intel Core 17

Memory: 8 GB 1600 MHz DDR3, graphics: Intel HD Graphics 5000 1536 MB. Does anyone have any suggestions?

You said "I took at the Genius Bar for someone to check it for bugs or problems".

What concluded engineering?

Just what did the genius?

What specific Mac do you have?

There is not a MacBook Pro with 1.7 GHz i7 and Intel HD Graphics 5000 processor

In addition, it is the Mac pro desktop forum

Tags: Notebooks

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