slow when zoom in and out

 

i have bought this laptop

http://www.msi.com/product/nb/GE70_2PE_Apache_Pro.html#hero-overview

 

installed ram = 16GB

128GB SSD + 1TB Sata (data)

 

i use autocad 2015 LT

when i zoom in it is very slow...

 

i run windows 8.1, should i do something to speed it up ?

 

thx in advance