SAP HANA jdbc performance

Hello,

I'm using HANA jdbc driver for aggressive querying  in HANA db and discovering next issue:

1. batching. As I understand jdbc driver doesnt support batching. For example, if we need update two tables, we should make two request.
2. slow inserting.  While ping to HANA is about 150ms, query is executing about 400-500ms via hdbsql.

Has anyone worked with jdbc on HANA?

Thanks,

Orest