Beating the Script Timeout

I have a server script triggered on Item Receipt, and for each item line I need to read the item record to get custom fields. For any receipts with more that 7 lines I was receiving a timeout, but I changed the way I was searching and managed to avoid the server timeout.

Before I was doing a search for each line:

 for ( i = 1; i <= newRecord.getLineItemCount('item'); i++)  {      var itemID = newRecord.getLineItemValue( 'item', 'item', i );      ...      filters[0] = new nlobjSearchFilter('internalId',null,'equalTo',itemID);      ....      var result = nlapiSearchRecord('noninventoryitem', null, filters, columns);      .... 

]

I then changed it to do one search for all of the items using the 'anyof' operator. I then have to search through the results to find each item, but at least it isn't timing out.