### Elasticsearch Version

8.2.0

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

docker-image = docker.elastic.co/elasticsearch/elasticsearch:8.2.0

### Problem Description

We are trying to migrate from Elasticsearch 6.7.1 to Elasticsearch 8.2.0.

With the same amount of documents per bulk request (100 docs per request), we always get a socket timeout in Elasticsearch 8.2.0. Everything works fine in Elasticsearch 6.7.1.

I noticed that indexing the same document in Elasticsearch 8.2.0 takes 44152ms. In Elasticsearch 6.7.1, indexing takes 50ms.

### Steps to Reproduce

[elasticsearch_8.2.0.txt](https://github.com/elastic/elasticsearch/files/8754299/elasticsearch_8.2.0.txt)
[elasticsearch_6.7.1.txt](https://github.com/elastic/elasticsearch/files/8754300/elasticsearch_6.7.1.txt)



### Logs (if relevant)

_No response_
server/src/test/java/org/elasticsearch/index/mapper/CopyToMapperTests.java
{
            BytesReference json = BytesReference.bytes(
                jsonBuilder().startObject().startObject("geopoint").field("lat", 41.12).field("lon", -71.34).endObject().endObject()
            );
            MapperParsingException ex = expectThrows(
                MapperParsingException.class,
                () -> docMapper.parse(new SourceToParse("1", json, XContentType.JSON)).rootDoc()
            );
            assertEquals(
                "Cannot copy field [geopoint] to fields [geopoint_copy]. Copy-to currently only works for value-type fields, not objects.",
                ex.getMessage()
            );
        }
        {
            BytesReference json = BytesReference.bytes(
                jsonBuilder().startObject().array("geopoint", new double[] { -71.34, 41.12 }).endObject()
            );
            MapperParsingException ex = expectThrows(
                MapperParsingException.class,
                () -> docMapper.parse(new SourceToParse("1", json, XContentType.JSON)).rootDoc()
            );
            assertEquals(
                "Cannot copy field [geopoint] to fields [geopoint_copy]. Copy-to currently only works for value-type fields, not objects.",
                ex.getMessage()
            );
        }
    }
}