Update Performance-Tuning.md

wiki/Performance-Tuning.md

@@ -3,17 +3,6 @@ We have a helper script which can help you manage and optimize Star Citizen on L
 
 https://github.com/starcitizen-lug/lug-helper
 
-## DXVK Async
-Using an async DXVK can greatly reduce stuttering for some hardware configurations.  
-For AMD users, we recommend https://gitlab.com/Ph42oN/dxvk-gplasync (Nvidia users, see our [latest news](https://github.com/starcitizen-lug/information-howtos/wiki#news))  
-You can manually download it into the Lutris dxvk directory or use the Helper to automatically install it  
-After downloading, be sure to set the environment variable `DXVK_ASYNC=1` and enable the downloaded version in the Lutris runner options.
-1. `Right click the game->Configure->System options->Environment variables`. Add `DXVK_ASYNC` as the key and `1` as the value.
-2. `Right click the game->Configure->Runner Options`. Check `Show advanced options` to unhide `DXVK version`.
-3. In `DXVK version`, select `Manual` then overwrite it with the folder name of the downloaded dxvk (ie. _dxvk-async-1.9.4_)
-
-![](https://matrix-client.matrix.org/_matrix/media/r0/download/matrix.org/wQRsUySnKmchQWyZrmoZFDnJ)
-
 ## Nvidia Cache
 
 By default Nvidia has a combined cache for all games. As the cache fills up from other games, Star Citizen's shaders may get deleted leading to poor FPS. We recommend giving SC its own persistent cache by adding the following environment variables: