Trouble with slow burn speeds

I’m having trouble with my burner having slow burn speeds. I have a Dell xps. The program I use to burn cd’s is Sonic DigitalMedia Plus vs. 7. My burner is a TSSTcorp Cdr-w TS-H292B. I know it’s old but it has worked fine until lately. The burn speeds went from max 47x down to speeds averaging between 5x-9x. I tried the whoe Dma thing but it was already set to Dma available. So I’m confused on what to do. Cd burning use to take 2 minutes just about 2 months ago, now I’m averaging 15-20 minutes. Can anyone help.

Thanks,
Painkyller

it was already set to Dma available.

Unimportant!

Enable DMA.