Have you tried editing the booleans in the quest script? I mean for an example setting selling whites to false.
Go on wowuction, select realm and then go to profession and look at sold per day or demand. Try some stuff out.
I did a quick google search and found this. It said that you could put you resolution to 240*320 in wow/wtf/config.wtf to reduce cpu usage, or as...
A tip form me would be bags here in the start of the expansion sell really well.
Besides TSM and the other scanner addons you can try wowuction, it has a db of every mat and craft with sold and posts per day + 14 day statistics
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