Optimizing data model update time

[Denis_Slav]

Hello, 

What kind of recomendation coul be to reduce model update time?

I've got folders with > 30Gb of CSV data, and each month I add +2Gb. Last try of update take about 2 hour, but it take more time, there update process was terminated.  

At the moment. which I found recomendation:

1) I turned off all auto detect date-time column;

2) Delete column which I not use. 

Or is it way to increase time to update model?