# Cemu detailed changelog for 1.25.3c# Patreon release date: 2021-08-27# Public release date: 2021-09-03New in 1.25.3c:Vulkan: Attempts to decrease delay caused by texture readback as this seems to be the main FPS bottleneck on higher-end machinesVulkan: Fixed a crash in various games caused by the use of certain types of drawcalls (regression in 1.25.3)New in 1.25.3b:Vulkan/OpenGL: Fixed graphic bugs introduced by one of the optimizations in 1.25.3Vulkan: We had to disable multi-threaded pipeline loading for Nvidia GPUs due to driver crashesThe exact cause is still being investigated. We plan to reenable this feature for Nvidia GPUs once a solution has been foundNew in 1.25.3:Vulkan/OpenGL: Several smaller performance optimizations to decrease CPU load of the GPU emulation threadVulkan/OpenGL: Fixed performance regression introduced in 1.25.2Vulkan: Pipeline cache loading is now multi-threaded and thus should be much fasterVulkan: Fixed a severe memory leak during pipeline cache loadingGX2: Minor optimizations to various GX2 API functionsUI: Input window improvementsSlightly altered profile load/save buttons for better clarity. Making it easier to distinguish if a profile is created, updated or loadedShow a warning if no GamePad has been configured as most games require one to be at least connectedlogging: Cemu will now no longer overwrite the log file immediately on start. Instead it will only write it once a game has been launched or an error occurredThis is to prevent users from accidentally resetting log.txt merely by reopening Cemu