Save data with spring take too much time

Im using neo4j spring data for save node,by using saveall method based on org.springframework.data.neo4j.repository.Neo4jRepository
Im trying to work with batch of 2000 entity per each saveall operation ,for the firsts operations it take aroung to 10 second - and be come more slower - the worst case is 10 min for 2000 entities when in neo4j found 200,000 nodes without any relation

Tnx in advance

Could you please tell me which version of Spring Data Neo4j you are running?

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/>
    </parent>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-neo4j -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-neo4j</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>