I use my Switch Pro Controller connected to my PC via Bluetooth as the controller for Project 64. Because Project 64 doesn't support DirectInput controllers, only Xinput ones, I have to use X360ce to convert the Switch Pro's inputs to Xinput. Usually this works fine, but sometimes I have huge input delay and some inputs aren't registering at all - that's very annoying, especially because it happened right before the last Bowser fight in a Mario 64 speedrun, so that I lost a potential PB - I was more than a minute faster than in my previous PB...
I really don't have an idea what causes that problem, as without changing the distance between the controller and the Bluetooth dongle, sometimes I don't have any delay and then suddenly it starts lagging. My PC should really have enough power for emulators (Nvidia GTX 980, Intel Xeon CPU and 32 GB of RAM) and when I use a GameCube controller in Dolphin or Rivals of Aether - again I need X360ce - I have no input delay at all.
I really don't have an idea what causes that problem, as without changing the distance between the controller and the Bluetooth dongle, sometimes I don't have any delay and then suddenly it starts lagging. My PC should really have enough power for emulators (Nvidia GTX 980, Intel Xeon CPU and 32 GB of RAM) and when I use a GameCube controller in Dolphin or Rivals of Aether - again I need X360ce - I have no input delay at all.