Exporting large number of data records is slow

**Describe the bug**
When the amount of data is large, exporting data will be very slow.
Here, it's not a failure caused by exporting data timeout. When I uploaded a text annotation data of 50,000 records, with a file size of approximately 30 megabytes, and tried to export it, it took nearly 4 minutes.

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

**Expected behavior**

**Screenshots**

**Environment (please complete the following information):**
- OS: [e.g. iOS]
- Label Studio Version [e.g. 1.12.0]

**Additional context**
Add any other context about the problem here.