The Default Windows Power Plan seems to be causing me some headaches on some busy SQL engines. Ok so if I had it my way I would have the DBA IO Tools, setup to update and use. That is some amazaing work ! But I belive this would have to pass throuh security at the company I work at. SO what to do, I checked Chrissy LemMaire's site, looked pretty doable. The PS Code will build you a nice csv for quickly importing into a SQL table. I hope you may be able to make use of the code.
Use SSIS to pull data from multiple instances. Combine with powershell to run multiple instances simultaneously.