HBase client Performance issue

[hbasetest.txt](https://github.com/alibaba/node-hbase-client/files/1255244/hbasetest.txt)

Hi Yuan ,
Very good morning. As discussed, I am creating the issue.
I used the client https://github.com/alibaba/node-hbase-client/ , which directly connect to HBase, no rest server. I believe this should give better performance or equivalent performance to HBase Rest server.
But while comparing with HBase rest server the response time for fetching a single row is 4 times compare to rest server.
What do you suggest, any improvement is needed. Is this ready for production deployment?
If I am missing anything and we can deploy this on production then let me know what are the changes needed to deploy this code in production.
Also, I need scanner code for this in Java Script.
Otherwise suggest me any optimize library which can directly used for production code.
Please give me suggestion.

Start by reviewing the attached hbasetest.txt and the reported single-row response-time comparison between the direct client and HBase REST server. Reproduce the comparison, then determine whether there is an actionable performance change or enough information to document production readiness and the requested JavaScript scanner guidance.

Written by the indexing model from the issue text.