Yes and NO....
There is the latency of the network. If you are on web clients (8.11 and newer), all transactions will actually occur on the server (in the US, not in Mexico) - so you wouldn't have any true 'latency' issues (where someone else's transaction is committed between the time you start and complete yours).
Additionally, EnterpriseOne is an SQL based system. On legacy systems, each record and/or field could be read or written individually. On an SQL system - the entire transaction is, in most cases, committed as a whole. This protects data integrity where a partial transaction is written, interrupted, then completed.
If you can be more clear as to which latency you are concerned - we can better explain the concept and/or process. Additionally - if you include the system/configuration in your footer (part of your profile setup) - we can target individual system inadequacies.
(db)