Separate Fuse Configuration For Frontend and Backend In Single Setup

I have designed one angular portal which is in Angular 10 and supported by php MySQL at backend, I am loading frontend part with the frontend routes and with layout changes like horizontal menu and some color combinations and apply vertical menu structure at administrator site i am using fuse-config index.ts file for backend view loading and for frontend i am calling one common function to change the config settings like change menu layout to horizontal and change some color combinations but i am facing the issue is when i visit backend and then going to frontend the whole application is glitchy loading it re render header view in dom and it looks like page refresh loading.