huh? linux does use a 'page file' its called swap.http://en.wikipedia.org/wiki/Paging#Linux
The performance hits you see are due to your hard disk thrashing when its attempting to read/write to swap. installing windows will not help, you will see the same type of performance hit. hard drivers are orders of magnitude slower than ram...
That being said, if you want to avoid hitting the pagefile/swap then get more ram. Ram is cheap...
edit: (forgot to add info about iso burning)
for burning iso, you can use: