What do you use to check if all folders/files are the same in all servers?

Currently at my workplace we are using fciv.exe with vbscript that was created long before I got this job. Now I am trying to use msdeploy in powershell with -whatif -checksum options to see if there are any differences in the servers and output them in a text file. My goal is make a much more efficient and faster script to check all folders/files throughout the servers but I found out that msdeploy is not actually that much faster than fciv.exe
Do you have any other alternatives that I can work on? I prefer not installing in productions servers because I run the scripts in staging boxes so it won’t impede in any performance issues.
Thanks