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Dolphin, the GameCube and Wii emulator - Forums › Dolphin Emulator Discussion and Support › Support v
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Decreased performance when using real Wiimotes via passthrough bluetooth adapter
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Decreased performance when using real Wiimotes via passthrough bluetooth adapter
03-08-2019, 04:13 PM
#1
Calavera Offline
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My specs are

CPU:i5-3570k@4.2Ghz
GPU:Radeon R9 290X
Ram: 16gb DDR3 1600

Dolphin has always ran fine for me in basically every game I've tried for the Wii and Gamecube which is quite a few.  Recently I wanted to use real wiimotes for games that don't work well on a gamepad.  Using them with emulate the Wii's bluetooth adapter the games run fine but it is kind of a pain to connect them each time.  I've switched to pass though Bluetooth adapter and synced the Wiimotes and they connect instantly each time.  The problem I am experiencing is games suffer mass slowdown when using the pass through mode.  I don't really understand how using that would cause the games to slowdown but it does.  I easily get 60fps in 1080p on every game. But with pass through enabled they drop down into the 40s.  Also it doesn't happen until the remotes are connected.  If I have pass through enable and start the game up but don't turn on the wiimote it stays at 60fps but as soon as I connect a remote it drops down to the 40s-50s.

Any idea what could be causing this?  The bluetooth adapter I am using shows up in the device manager as CSR8510 A10. I've already installed the proper drivers to use it with Dolphin.  I don't recall the name of the program but it was to install some kind of lib drivers.

Any help would be appreciated. Thanks.
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03-08-2019, 11:39 PM
#2
themanuel Offline
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Of all the problems that I've had with passthrough, I've never noticed a difference in performance when using it.
Make sure you used Zadig to install WinUSB or libusbK. The former works better for me.
Windows 10 Pro x64  |  i7-9700K @ 4.6-5.0GHz  |  MSI Z370 Gaming Plus  |  MSI RX 5700 8GB Factory-OC  |  16 GB DDR4-3000
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03-08-2019, 11:50 PM
#3
DJBarry004 Offline
Don't even bother...
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You may want to open the Windows Task Manager to see what is beating up your CPU.
Rig 1: Windows 10 Home | AMD A6-1450 @ 600/1000/1400 MHz | AMD Radeon HD Graphics 8250 | 4GB RAM | HP Pavilion TouchSmart 11.

Rig 2: Windows 10 Pro | Intel Core i7-2640M @ 780/2800/3500 MHz | Intel HD 3000 Mobile | 8GB RAM | Dell Latitude 6320.
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03-09-2019, 04:19 AM
#4
Calavera Offline
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(03-08-2019, 11:39 PM)themanuel Wrote: Of all the problems that I've had with passthrough, I've never noticed a difference in performance when using it.
Make sure you used Zadig to install WinUSB or libusbK. The former works better for me.
I used Zadig originally and installed libusbK. I just tried switching to WinUSB hoping that would help but had the same result.

(03-08-2019, 11:50 PM)DJBarry004 Wrote: You may want to open the Windows Task Manager to see what is beating up your CPU.

CPU usage stays very low, same as when running it without pass through mode.

I've captured a video of the problem happening and will upload it soon. I really don't understand how the passthrough could affect the performance.
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03-11-2019, 07:04 AM
#5
Calavera Offline
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Here is a video showing the problem.

https://www.youtube.com/watch?v=iAQqaUZpg7c
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03-11-2019, 07:51 AM
#6
RemagOrter Offline
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Does this happen with another Bluetooth Adapter too?
I used a Sitecom bluetooth adapter first, and had similar problems. I bought a SENA UD-100 then, and have no more problems.
Maybe it'S the Adapter causing the problems. I would try another one, just in case it's the hardware.
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