Download large files using Swagger UI

I am trying to download large files (greater than 1 GB and less than 10 GB) using Swagger UI.

Checked examples and got it working for smaller files, where response returns a link to download a file, however, when the file is large, the response is not returned.
Thought it was a timeout issue and updated to an infinite timeout in the JavaScript code. Still the only result I get is a loading sign for more than 20 minutes for 1 GB file. (Cancelled the request after that).
Curl command for the same GET API works fine and returns result in around 8 seconds.

Have tried with the below approaches:
1.

            res.setHeader('Content-Disposition', 'attachment; filename=' + fileName);
            res.setHeader('Content-Type', 'application/octet-stream');

            res.download(filePath, (downloadError) => {
                // Error handling
            });

          res.writeHead(200, {
            "Content-Type": "application/octet-stream",
            "Content-Disposition": "attachment; filename=" + fileName
          });
          fs.createReadStream(filePath).pipe(res);

Is there a different implementation to handle large files in Swagger or is there something wrong in the way the javascript function is implemented?

Thanks.

Start by reproducing the issue in Swagger UI with the reported streaming download responses for files between 1 GB and 10 GB, then compare the browser request with the working curl request. Determine whether the loading state is caused by Swagger UI or the browser response handling; done should include a confirmed fix or a documented limitation with a focused regression test if applicable.