Receive/send Transactions latency
If I understand your question, your latency compared to blockchain.info is motivated to the blockchain.ifo use the node distributed to the world and you have only the one node.

I have read this reasearch where write this


  In  any  peer-to-peer  system,  dierent  nodes  will  receive  thesame data at different times.  Blockchain.info uses a geographi-﻿cally distributed set of nodes to obtain relatively accurate times-tamps.   BlockSci is a single-node system,  so its timestamps in-evitably lag those of blockchain.info. Based on 2 weeks of mempooldata recorded by our AWS node in theus-east-1ddata center, wefound that our timestamps lag blockchain.info’s timestamps byan average of 16 seconds and a standard deviation of 4 seconds.Any BlockSci user can perform a similar measurement and apply auniform correction to eliminate the average lag, but of course the﻿variance will remain.