Realistic lawn request!

Hello. For a long time, I have been trying to create realistic grass for Unreal Engine with both Megascans and my works. I shared the image I was trying to create. There is someone who can achieve this, but unfortunately, he has not provided enough information. There are options in the Megascans library but I am having an FPS problem in big projects. When I use LOD, the image is not what I want. Please can you help with this? Do you have a chance to add new lawns similar to the one I shot?