"When connected wirelessly, the movie pauses several times to load and will sometimes freeze during this process"
supposedly netflix is designed to work with a 1.5 mbps connection for low quality video, i read somewhere that 1mbps could be enough but i highly doubt this or worthwhile
if you experience such situations it is not related at all with the adapter, it is the internet connection itself
a 802.11g connection will offer at least 12 mbps when signal is weak and as high as 54 mbps when signal is good, but usually will do 36mbps all the time
a wired connection in older laptops is 100 mbps so as you see both devices will be able to handle a 1.5 mbps connection without a single problem
the internet connection, is it shared with many pcs? if one user is downloading netflix, another watching youtube videos, another one listening music and other one downloading or uploading multiple files, the 1.5 mbps connection required exclusively by netflix won't be able to handle such load and you will experience the hangs you describe
what internet connection do you have? you can run www.speedtest.net
to see what results you get, if you run a couple times the test and get very different results your internet connection is being used by more than one pc or you are experiencing connection problems