There's no point doing that, because all those files are downloaded on startup already for the offline cache.
If this is related to this issue, the problem was the server had disabled caching. So the server was telling the browser to re-download the resource every time it was requested. If the resource is allowed to be cached, it won't be repeatedly requested.
You are right. Actually I don't have knowledge of web development so I just simply assumed that it was game engine fault
I will have to change some settings on the netlify so that my problem gets solved
Thanks a lot Ashley for figuring out my issue. Thanks again