### 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
b.startObject("fields");
            {
                b.startObject("bar");
                {
                    b.field("type", "text");
                    b.field("copy_to", "my_field.baz");
                }
                b.endObject();
            }
            b.endObject();
        })));
        assertThat(e.getMessage(), Matchers.containsString("[copy_to] may not be used to copy from a multi-field: [field.bar]"));
    }
    public void testCopyToDateRangeFailure() throws Exception {
        DocumentMapper docMapper = createDocumentMapper(topMapping(b -> {
            b.startObject("properties");
            {
                b.startObject("date_copy")
                    .field("type", "date_range")
                    .endObject()
                    .startObject("date")
                    .field("type", "date_range")
                    .array("copy_to", "date_copy")
                    .endObject();
            }
            b.endObject();
        }));
        BytesReference json = BytesReference.bytes(
            jsonBuilder().startObject()
                .startObject("date")