The speed of file preview is very slow

[ArlenWay73]

This issue is unique.

• [x] I have used the search tool and did not find an issue describing my bug.

Operating System of DocumentServer

Docker

Version information

8.3.3.18

Expected Behavior

Previewing a remote docx file of 50-60 megabytes takes Less than 10 seconds

Actual Behavior

I have started a document server in the local Docker. Previewing a remote docx file of 50-60 megabytes takes more than 15 seconds. Through the console, it is found that the WebSocket request alone occupies ten seconds, while previewing the same file through the test example only takes 3 seconds. May I ask what measures can be taken for optimization?

Thank you in advance.

Reproduction Steps

No response

Additional information

No response