sveltekit app deployed on cloudflare. will it become slow as project size increases?

When sveltekit runs build command, it outputs _workers.js file containing all the server code in one file. Mine at present is 980kb. And i expect it to grow as i add more code. 1. Does the request response become slow as the size increases as this huge script has to load on every request. 2. And i saw in docs the workers size limit is 1mb for free tier. Is it the same for page functions?
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