Input Lag and Screen Colors Issues

[Tokyo Toe]

Hello folks,I've been having input lag (and now, another) issues.

I'm playing on PC (preordered STeam ver several months ago), with a wireless XB1 controller. 1060 card. Windowed mode. I have anywhere from 1/2 to 2/3 second input lag. Some notes on this:

o THIS IS ONLY HAPPENING IN SEKIRO, NOT ONE OF THE 387 OTHER STEAM GAMES i OWN EXPERIENCE INPUT LAG (including the Souls games and even Nioh - I just tested these out last week) - it's not the contoller
o I've tried several graphics options in Sekiro, no change
o I've tried a few options in nVidia Control Panel (like turning VSync OFF) - no change
o someone elsewhere suggested changing resolution from 1440 to 1080, so I tried this - no change

One of the last things I tried actually fixed input lag: changing to fullscreen (again, via Sekiro). That worked. No input lag! However, going fullscreen has caused a completely different issue: I'm guessing due to the HDR mode that gets enabled in fullscreen, when I closed out of Sekiro I found that all my color setups on my desktop/windows were all jacked up. The color/contrast/brightness/gama/etc were aaaaall off, and I had to spend a good 20+min readjusting my color setup. After, just to be sure it was Sekiro and not some ghost nVidia update, I reopened Sekiro and closed it - all my colors were jacked up, again.

SO. I've been waiting patiently for a patch to drop, no luck. I've been posting on other boards, no luck. I've been searching forums and posts all over the web for this issue, no luck. I'm not playing wired when I haven't had to for ANY other game, and I'm not playing in fullscreen when that jacks up my display. So, I'm boned.

If anyone else has had this experience, at least the PC input lag, and has genuine, actual help/advice, I'm all eyes. Otherwise I'm biding my time for a patch. And if one doesn't come (or it doesn't fix my issue(s)), I'm gonna bite the bullet and just got by a different version. In the meantime, I'm playing through Nioh.

[Tokyo Toe]

An update:

Since the OP (and the game's release), I have been unable to play this game due to the issues listed above. I've been trying ideas/solutions daily since, no luck. The only change I've noticed now is that:

if I play the game fullscreen with HDR OFF, I still have input lag
if I play the game fullscreen with HDR ON, I get no input lag but the color scrambling issue (read OP) still occurs

I'm hoping someone else out there had these issues and knows a fix, but until it gets corrected I'm not playing. Sadly.