[2020] Issue followup: "Game started feeling floaty"

Regarding this issue with multi-threaded input:

https://www.reddit.com/r/Diabotical/comments/i31g0s/game_started_feeling_slow_or_floaty_is_it_just_me/

We made several improvements and fixes to multi-threaded input yesterday. We have had good results in our internal testing group.

• People who previously felt ON was better than OFF, now think the the difference is more pronounced and multi-threaded is even better. The qualifier "crisp" has come up a few times.

• On the side of more objective testing, somebody did 180º flick tests back and forth between versions with and without the fix, and accuracy improved significantly.

• Some people who were disabling it are now playing with it enabled.

The improvements being reported are consistent with a diminished reproduction of the symptoms being reported by some people in that thread, meaning our testers were experiencing a tiny latency and most of them didn't even realise it until it was fixed yesterday. Some people in that thread seem to be experiencing an aggravated version of that so I'd like to know if these people have their situation completely resolved in the next test. Please post on the bug thread during the next stress test if this issue persists for you. To be clear the issue that we are talking about is "high latency in the input thread" and it could be described as a feeling of "floatiness" or latency when it comes to the camera orientation responding to movement of the pointing device.

Multi-threaded input should feel better in the vast majority of cases. I'm leaving room open for some special situations in which it'd be better to disable it in theory, but it would be a very uncommon situation in which you are experiencing instability from that due to very low specs or faulty chipset/drivers, and you are willing to trade in some latency for stability. Multi-threaded input should never feel more consistently "floaty". In general if Off is better than On for you, there's something that we need to fix and I would like to hear about it in the bug thread during the next stress test.

Also another clarification: there are other things that could be described as "floatiness" that have more to do with physics and friction. This has been pointed out in a thread among other feedback issues and it's being considered seriously, but it's not this issue.