I have a next.js application in typescript using v13 , in which i have used app directory , but i am having issue on development server once it get start it take a lot of time serving the page after caching it loads pretty fast but for the first time it takes a lot of time and so to make it optimised i tried turbopack but it again went into infinite request of page could any one help me out here how to get rid of much loading time taken initially