This just sounds like an inefficiency in Google Docs. Native software can also be inefficient, even if it's written in C or asm, if the data structures or algor

This just sounds like an inefficiency in Google Docs. Native software can also be inefficient, even if it's written in C or asm, if the data structures or algorithms used can't handle certain types of data well. Just in this case, the native software seems to be able to handle that file better.