Slow burns

I have just purchaed a new computer, a Lenova 2T hd, Intel i7 cpu, runs great, problem is it takes forever to burn, I took out the orginal drive, and replaced it with a Nec 7200s and added a 7241, still takes twice the time of my other older computer, I know that RMA had a lot to do with that, but when I go into device manager it does not show any RMA and no way to add it, I am using Win 8 , don’t like it but it came with the package and I am not familiar with this program. Any ideas greatly appreciated.