Neo4J Browser on Windows terribly slow

Dear members,

I am aware that this issue might have been raised already in the past with earlier versions of Neo4J:

I am using Neo4J Desktop 1.5.9 on Windows. When I try to edit Cypher queries using the Browser, this is getting terribly slow after a while. Whenever I try to specify a node type, the Browser comes up with look-up popups for the selection of node names or attributes.

I used to think that this could be disabled using the configuration command

:config autoComplete:false

However, although the Browser is confirming to me that this toggle was done, it keeps looking up tags in the database. I believe that is also the reason why any text input to the fields is so drastically slowed down.

Does anybody have a hint how else to disable this automatic lookup during text entering?

Thanks in advance