Increased latency for EXPORT_VIEW content bodies

Issue Summary

When expanding content body, we noticed that body.export_view is significantly slower than body.view even though the output is very similar. Due to this body.export_view expands are causing timeouts.

Steps to Reproduce

1. Use Get content descendants by type API 
2. Select page id which has a good amount of child pages. 
3. Add expansions - body.export_view.webresource.tags.all, body.export_view.webresource.superbatch.tags.all,metadata.labels,ancestors

Example:

<HOST>/wiki/rest/api/content/<PAGE_ID>/descendant/page?limit=200&expand=body.export_view.webresource.tags.all%2Cbody.export_view.webresource.superbatch.tags.all%2Cancestors&start=0

Expected Results

Expected 200 response

Actual Results

the document fails to load 

Workaround

Try to use body.view expansions and try to call API with a smaller limit (Query param `limit`), Try with limit=50.