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There are many ways to solve your dilemma. One is, unless you really have your heart set on doing this through Access, is to use a logical file keyed in the sequence you want your query in and run your query over the logical view. Using this logical view will reduce the amount of time and CPU your query uses. And yes, it will take some CPU to build the logical view, but you can schedule it to be created/installed during slow hours. If your file is really enormous you may be better off writing a program to spin through it, filter out records you don't want to report on, write those that you do want to report on to a separate physical file and run your query over your new file.
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