AxCrypt is only limited by available hard disk space. When encrypting bulk amount of files or larger files, AxCrypt will take some more time to finish the encryption/decryption. AxCrypt performs as much as faster based on the user’s system configuration and the file size.
Also, We do have some performance issues(when working with more than 10000 files) and we are working on the application to optimize the performance when working with more files.
You can also send the complete error report to troubleshoot the issue. Please follow the detailed instructions to take the complete error report: https://www.axcrypt.net/blog/send-complete-error-report/ . so that we will try to troubleshoot the same as soon as possible.
Please provide more information about the issue and write an mail to firstname.lastname@example.org