When rendering to the main window viewport using Vulkan, movement is smooth as expected. But when rendering to a separate framebuffer movement becomes jittery.
Rendering straight to the window:
Rendering to a framebuffer (and rendering it with ImGui):
Creating a framebuffer creates a new render pass, a new command pool and command buffers, a new depth and color attachment images, new framebuffers, a texture sampler and adds the images to ImGui using ImGui_ImplVulkan_AddTexture.