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thpatch / thcrap-tsa

Basic thcrap patches maintained by the Touhou Patch Center developers
https://www.thpatch.net
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Fix low FPS if a mouse, graphics tablet, or game controller is plugged in #23

Open nmlgc opened 6 years ago

nmlgc commented 6 years ago

On my system, TH09 is the only game affected by this, but there have been reports of TH11 causing the same issue on other systems. Therefore, this is not a DirectX 8 vs. DirectX 9 issue that could be solved with a converter DLL. It also happens in both DirectInput and WinMM modes.

nmlgc commented 6 years ago

Also triggered by USB microphones. The more devices are plugged in, the worse the FPS get.

DankRank commented 6 years ago

Also th10, th12. Maybe others.

DankRank commented 6 years ago

In my experience FPS can be improved by removing any HID device from the system. My old keyboard had many of those, but only one was used for the actual input (others were for macro keys). My UPS also shows up as a HID device.

Restarting the computer also seems to help.

Here are links to other people having the problem (posted these in the discord a long time ago) https://www.shrinemaiden.org/forum/index.php?topic=8111.0 https://answers.microsoft.com/en-us/windows/forum/windows_7-gaming/touhou-games-running-at-about-25fps-instead-at/ea3d85d3-3344-e011-90b6-1cc1de79d2e2

nmlgc commented 6 years ago

Changing TH09's controller settings in custom.exe to keyboard rather than gamepad fixes the problem for me, even though I don't have any gamepad connected. Changing only one of the two players to keyboard still leaves a drop of about 10 FPS.

th09 slowdown and speedup

nmlgc commented 5 years ago

Started happening to me with TH06 now.