If I remember correctly, the last time I synced, it took about half an hour until it finished.īasically, the task first deleted all related files from the destination machine and copies all Thunderbird profile files from the source to the destination. After 1 and a half hour I stopped the process, because the estimated time left says about 4 hours left. I do this occasionally, guess it was about a month ago I executed for the last time. I noticed the slow down in performance today while copying the Thunderbird profile to the source machine. SyncBack Touch on both source and destination machines is version 1.3.11.0 and all current Windows updates are installed. Both Windows PCs are members of my local Active Directory (Samba) but this should not count anyway. Anti-virus is built-in Microsoft Defender and I already tried to deactivate it and re-run the sync task to no avail so far. Both machines are using SSD only and the network speed is 1 Gbit. Destination machine is running Windows with 16 GB memory. Source machine is running Windows 10 Pro (DE) 1909, 32 GB main memory. This profile is located on my local SSD so is the destination location. The files that are being copied from src to dest, are about 4 GB, a complete Mozilla Thunderbird profile of about 4 GB in size. I'm running latest SyncBack Pro 9.3.11.0 (圆4) on my source and destination PC.

2brightsparks syncback