Let me preface this that have not used neo in ~1 year. But before then I used it all the time. Imported the whole US patent DB into it. Its performance was ver

Let me preface this that have not used neo in ~1 year. But before then I used it all the time. Imported the whole US patent DB into it. Its performance was very solid, both for importing and querying using their CYPHER syntax language, which is well tailored for graph representations and graph algos. Definitely had millions of edges, with ~8M nodes. That said if you are having import issues, you must be not using batch. If the that's the case you are creating significant overheads in your write process (every write acquires certain locks and syncs the db to avoid concurrent mod issues)