No, these are alternative ways to try to sort out your read speed issue (they have nothing to do with DVRFlash) without having to contemplate crossflashing or updating the firmware.
This sort of read speed issue sounds like a system issue, not a drive or firmware issue and the 3 possible solutions suggested are a way of attempting to fix this system/Windows issue.
The first two suggestions should be easy enough to do, you just connect the drive to a different port on your MOBO (make sure it is one which supports ODD, preferably Intel, etc, not a RAID one) and you check device manager for any driver errors for this drive. The third one is more tricky, but if you do a search for 'Remove upper & lower filters' either here or in Google you'll find detailed instructions how to do this easy enough.
Another possibility would be to play a bit with your BIOS settings (i.e. change your SATA port settings if possible/available, trying different settings like IDE or AHCI if possible/available to set individually or if they don't affect the boot drive), update your mobo's BIOS if one is available (quite often these contain firmware updates for the integrated SATA controllers used by your mobo, which could address compatibility issues or bugs), and/or update the chipset/SATA/storage drivers of your mobo to the latest available...