My realm lags really bad! Unplayable!

Our Realm has become increasingly laggy!  It is to the point my screen is vibrating at all times, giving me headaches and eye strain!  

-  My internet is in perfect working condition.

• We have not changed any settings or anything on the realm that would be a catalyst of the lag. 
• It seems the lag increased after the most recent update.
• Our realm is on Windows 10/Xbox