You can change the default anti-aliasing settings by using the following commands:
>>set(groot,'defaultaxesfontsmoothing','off')
>>set(groot,'defaultfiguregraphicssmoothing','off')
For more information on changing default properties, you can refer to the following link:https://www.mathworks.com/help/matlab/creating_plots/default-property-values.html
For making these changes permanent, you can include the above commands in "startup.m" file.
