Problem with ubuntu on laptop-very slow and errors

I have a problem with ubuntu on my laptop. I have fairly good hardware however after installing ubuntu alongside windows, I had major problems before I got it up and running. The system runs very slow compared to windows. I thought it was a problem with the graphics card drivers. However, when I dealt with that, the system still runs slow. It pops up some strange errors at system startup which I’ve uploaded below. Thank you in advance for your help.

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This looks like nvidiafb is active, which should be blacklisted. How did you install the driver? Please run as root and attach the resulting nvidia-bug-report.log.gz file to your post.