Generic USB 3.0 Hubs downgraded to 2.0 all of a sudden

So i have had this generic usb 3.0 hub for a while and it was working super fine image here , copying files across two external hard drives happened in full usb 3.0 speeds on it , then all of a sudden its performance dropped down to 2.0 speeds , i.e 40 MBs ext HDD to int HDD and 20 MBs ext to ext HDD copy .

Now this was almost an inconvenient 75% drop down in speed , trouble shooting it i tried :
1 - Different cables (same results)
2 - Plugging ext HDD directly to local port (works in full usb 3.0 speed)
3 - Install Win-Raid moded USB 3.x driver (detected the hub as a "USB 2.0 Hub")
4 - Checked with hub properties in device manager > compatible ids , and all ids show as USB3
5 - Tried on a Win 7 laptop , works fine
6 - Bought a new hub image here but still acted as USB 2 hub and reads as a USB 2 hub
7 - Tried all upper steps except for replacing cables as this one comes with a built in one but still no change

So I am coming to a conclusion where i need correction on if i am wrong that i might have had some windows update that kind of caused that effect out of the blue .

But still i am in dire need to have a hub with such high speed since i need to work on massive amounts of data floating around , now I was considering maybe a branded USB 3.0 hub but since i have invested 50$ on last 2 generics and branded similar ones start at 50$ the least then this is becoming more of a money drainer with no proven outcomes or solutions , so any suggestions is appreciated .

P.S this is not a call for finding me a 5$ or so discounted branded hub since i am not probably from where you are and customs may apply and i might still end up with same outcomes , i just need to understand what's going on and how to remedy it .

Thanks in advance .

it's a laptop. bios has nothing really but 4 or 5 options . and usb drivers are either the moded win-raid 3.0 or Windows default and both give same result

As you said it can be the result of some update... What you can try:
- revert to some previous system image if you have one
- in device manager, select Devices by connection, uninstall (& remove driver if possible) devices in sequence: external hub, usb3 root hub, usb3 controller; then restart... os should install generic drivers again.

I had a problem with that same looking cheap usb 3 hub your showing in your picture.

Problem turned out to be a bad usb 3 cable that goes from hub to the PC, HUB was fine

Buying a cheap samsung usb 3 cable off ebay for a buck from China fixed the hub back to working at usb 3 speeds. But my symptoms on the 7 port hub were also that half the ports did not work at all.
One end of cable is microusb 3, other end is standard usb3.

why the OEM choose that crappy microusb3 design over just a plain standard usb 3!!
Probably was able to make it cheaper and sell and make more money.

here is the good cable I bought as a replacement.
Original Micro USB 3.0 Data Charger Cable For Samsung Galaxy S5 Note 3 III N9006 | eBay