Arangodb AQL Limit> 1000

I am seeing a problem when used LIMIT > 1000

in AQL:

• the request is fast before LIMIT 1000
  
  , which lasts less than a second.
• starting from LIMIT 1001
  
  , the request becomes very slow ... I abort it after 20 seconds.

Here are some examples:

FOR e IN subcategoryOf
LIMIT 1000
RETURN { "id": e._id, "text": e.text }
--> Fast, below a second

      

        
        
        
      

    

FOR e IN subcategoryOf
LIMIT 1, 1000
RETURN { "id": e._id, "text": e.text }
--> Fast, below a second

      

        
        
        
      

    

FOR e IN subcategoryOf
LIMIT 1, 1001
RETURN { "id": e._id, "text": e.text }
--> not answering after 20 seconds, manually aborted then.

      

        
        
        
      

    

Does anyone observe the same or have a clue for me?

I am using ArangoDB 2.3.0 on Windows and aardvark AQL editor.