Turbocharger lag was always a problem with SAFARI and everyone knows that only after 2000 rpm you can see real Safari Cruising and I too notice it everytime I drive, anyways have to go with it.

The new Safari worked on this problem and they used something similar to  Variable geomatry turbocharger and  called it which  VTT stands in new safari for Variable Turbine Technology. Though this thing worked cool but still looks like turbo lag is there.

Basically, turbochargers are provided to increase air intake in engine by compressing it to even greater level, most of the time turbochargers turbine are operated by engine exhaust gases, so only at required engine speed, turbocharger may get adequate power hence at lower speed it may not work good. To address this turbo lag at lower speed, variable turbine technology is induced in Safari. So what I can say that Safari has minimal turbo lag possible for the type of engine and housing of the turbine they have. You can't do much as Safari is already handling properly.