Could you please include an example of the call you make and the result you receive.
As a quick test I just tried ek.get_data(['LCO6350E8'],['BID','ASK','TIMACT']), and I got back
Instrument BID ASK TIMACT
LCO6350E8 1.87 1.9 20:16:21
In the above the timestamp on the quote (the value of TIMACT field) is current and the same as in Eikon Quote app. In other words I'm not reproducing the issue you describe.