Runtime error on Retrieve Predictions (Timeout)

**Describe the bug**
After connecting local storage and performing sync or connecting ml-backend and performing Retrieve Predictions, a timeout occurs.

**To Reproduce**
Steps to reproduce the behavior:

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1. go cloud Storage
2. add local storage
3. press button sync storage
4. In progress -> The problem occurs after about 90 seconds(Runtime Error - Gateway TimeOut)
-> Still working on the backend.
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0. after connecting ML-backend
1. In project, Press buttton "Retrieve Predictions".
2. The frontend gets blocked while ml-backend is running. The problem occurs after about 90 seconds(Runtime Error - Gateway TimeOut).
3. Still working on the ml-backend.
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**Screenshots**

**Environment (please complete the following information):**
- OS: windows10
- Label Studio Version: 1.13.0

**Additional context**
I tried modifying the config values ​​of nginx(proxy setting), but it didn't work.
I think a timeout occurred on the frontend.

Please help me.