They mention that file performance decreases with the numbers of filters that are attached to the NTFS drive. Is there a way to list the filters to determine which ones (and how many) are applied on your system?
fltmc filters
You can figure out what each of the filters is by looking at the output of:
sc query type=driver
sc query type=driver | grep -A1 -i -e cldflt -e wcifs -e storqos -e filecrypt -e luafv -e npsvctrig -e wof -e fileinfo