If you are using an external graphics card, the built-in monitor on your laptop is still using the integrated graphics card that is built into your motherboard. Introducing another graphics card may be too much of a drain on your system. It is also possible that you are running a 5400 rpm hard drive in that machine, which is too slow for audio editing. You will want to use a 7200 rpm hard drive or SSD drive when working with audio. If you would like for PreSonus to take a look at your system, please submit a support ticket at my.presonus.com. Once you log in, just click on "Support" to submit a ticket. Please make sure that you send us the .nfo file that is requested when you submit your ticket. You will be emailed instructions upon submitting the ticket.