Hi there,
Yes Good to know the Low level gets it done, You have any other devices connected? Those pins are for I2C communication with those devices. You can also enable a time stamp that is in the IMU presented with the readings. So maybe look there if high precision for timing is needed.
Read over the Data Sheet for the LSM6DS3 during the down time and check out all the things it does as well.
Look at this thread, by Msfujino. There’s a lot in there but well documented.
HTH
GL 
PJ
ps. I’m having fun with my Nephews, 12,10, 7… 
I showed them the 3D printer and we printed some darth vaders, storm trooper and spiderman head,etc. I think 1 of the three is destin to be an engineer. 
