The new Cypher parser in Neo4j 4.2 has made data imports significantly faster, with improvements of up to 10 times faster than the previous version, Neo4j 3.5. The improved performance is due to the rewritten Cypher parser and the introduction of new optimization techniques such as UNWIND and UNWIND BATCH parameters. These optimizations allow for more efficient import operations, resulting in faster data loading times. In comparison, the export operation has seen a slight slowdown in Neo4j 4.2 compared to Neo4j 3.5, but overall, the improved performance of the new parser and optimization techniques has made imports significantly faster. The results show that with the new shell parameters, the import time has decreased from 10 minutes in Neo4j 4.1 to under two minutes in Neo4j 4.2, highlighting the efficiency gains of the new Cypher parser and optimization techniques.