Hello everyone, I tried my best to scour through the forum and using the search function to fix my problem but sadly I'm at my sanity's end.
I've had my Keris with me for more than 1 and half years (warranty ended) and no problems were present until I bought the Gladius 3 (still working perfectly) and did the firmware update through Armoury Crate. My theory is that I messed something up, and by updating the Gladius I somehow screwed up the Keris' firmware.
Just to make sure I was not insane, I used MouseTester on my Asus Keris mouse in wired and wireless. These were quick swipes and normal behaviour should be a quite smooth mountain (seen on wired) but for the wireless graph you can a see a bunch of unsmooth weirdness, here are the pictures below. this is the wired graph this is the wireless graph
Another set of pictures before stating what I've tried to fix the problem. These next pictures (if I understand them correctly) describes the mouse's polling rate stability, as you'll see the wired looks (and felt) really consistent and smooth but the wireless graph looks (and I personally felt) like it is not consistent at all.
Things I've tried: (installations with dongle and usb cable connected in different ports) 1) Moving dongle closer. 2) Uninstalling Armoury Crate (with Uninstaller) and Installing again. 3) Removed drivers in Device Manager (in the Keyboard and Mice options) 4) Using different USB ports (hubs and direct to motherboard) 5) Left|Middle|Right clicks to factory reset, and then installing firmware. 6) Tried reinstalling the Firmware with the switch position in Off(wired) mode, and 2.4ghz mode. 7) And I also did a full Windows 10 reinstall (I normally do one every January, but I did early for the mouse)
The next pictures are just to show my Armoury Crate version, as well as the mouse's Firmware and Dongle version. I'll write them at the end.
Sorry for super late reply, when the forum went on maintenance I sort of moved on for a little bit and I just recently remembered this post.
You're right, the Keris doesn't come with an extender but I'm lucky since my monitor arm has two USB 2.0 extenders that connect to the back of my PC. On average the mouse distance to the dongle is between 9-45 cm (~0.2-1.5 feet) since I play with quite a low sensitivity.
Sadly, doesn't matter how close the mouse is to the dongle the stutter is felt and shows up as polling rate drops in online polling rate checkers.
It is possible to reset the wireless firmware somehow? I ask because whenever I did a factory reset (left|middle|right clicks), wired mode was really stuttery, and it gets fixed when I update the firmware via Armoury Crate (since firmware is reset, Armoury prompts you to update).
This could be absolutely wrong, but my guess is that factory reset does not reset the wireless dongle or whatever it is that I'm not knowledgeable in knowing, which makes it persist through factory resets, and windows clean installs?