I have Created a Workflow which can enhance the blurry images, we can use FLUX.1-dev ControlNet Upscaler, This model has been trained on lots of artificially damaged images—things like noise, blurriness, or compression. And it learns from those bad images and can turn your blurry pictures into clearer ones.

https://huggingface.co/jasperai/Flux.1-dev-Controlnet-Upscaler/tree/main

Credit:  https://comfyuiblog.com/

https://www.youtube.com/watch?v=WcHlkgVlVPs