Ok, I have done about 1000 tests before coming on here trying to fix it myself and i am unable. It is blowing my mind.
Issue: After a constantly changing amount of time, i can only read/write the HDD at about 500kbps to 800kbps via CIFS/SAMBA/FTP. The issue also is simply internal as plex cannot read the information on the disks fast enough once it goes into this state.
Non-resolutions: I initially thought it was a conflicting package issue, so i fresh installed the DSM and installed no additional packages. same issues.
I then thought it was a disk spindown issue, so i turned off disk spindown. same issues.
I have a laptop running DSM just fine. no issues.
I am starting to believe it is a hardware issue. but i cannot surmise which hardware is having the issue! Is it my NIC card? Is it my HDDs? Is it a setting on the BIOS putting something to sleep i cannot find???