Don't load the entire Instrument object just to get a list of instruments valid for an object (referenced in bika/lims/browser/js/bika.lims.worksheet.js).  It slows the query down to about 10-12 seconds per call and getting slower as you do more tests with an instrument as it looks up every test done with that instrument.  All the while you are only looking for a list of instruments valid for a particular method
Don't load the entire Instrument object just to get a list of instruments valid for an object (referenced in bika/lims/browser/js/bika.lims.worksheet.js).  It slows the query down to about 10-12 seconds per call and getting slower as you do more tests with an instrument as it looks up every test done with that instrument.  All the while you are only looking for a list of instruments valid for a particular method

DeBortoliWines/Bika-LIMS,DeBortoliWines/Bika-LIMS,DeBortoliWines/Bika-LIMS