Flashing bios to older version

i use dell n4030 inspiron laplop..but after updating bios my pc working slowly
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More about flashing bios older version
  1. I have not seen a BIOS utility yet that will allow you to go back to an older version. Every one just states "your version is the same or newer" and exits.

    Try updating the drivers for the laptop, including the chipset, see if that helps.
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