We condensed our company file from 194,740 KB to 103,076 KB. 

Somedays it boots up quickly, somedays I fall asleep waiting.  

In summary, condensing your company data file does NOT improve QB 2020 PRO performance. 

My suggestion is to boot up QB 2020.

While its wondering what it wants to do make yourself a fresh pot of coffee, 

do your laundry, read last week's NY Times.  Come back in 1/2 hour and check the status.