T'he import of large PCA components (mass data) such as USER, BATCH_INPUT, ARCHIVE_* and SWU3_DATA takes a very long time.
Import, PCA, USER, BATCH_INPUT, ARCHIVE_*, SWU3_DATA
To improve the duration of the import, implement SAP Note 2456192 - System Copy: 11. Improvements TC.
With SAP Note 2456192 - System Copy: 11. Improvements TC, we offer the feature parallel import of configuration data. It is strictly recommended to use R3trans version with time stamp 24.03.17 or newer.