Slow transfer in Windows 11

When i transfer a file to Cryptomater it takes about 1-2 minutes before its actually starts to transfer the file.
The file is from a external hard drive. Same problem appear files from pc.

Anyone know why ?

I have seen this too with Windows 10, so it is probably not a Windows 11 thing. I still use v1.6.17 with winfsp (fuse).

For me it is occasional, not always happening. When it first happened it was with a 7zip file that had multiple small files in it, so I assumed it was a background decompression / scan by my antivirus. Since then I think I have seen it with smaller non-compressed files too but I can’t remember details. Are your files compressed too? Which version are you using?

I’m using 1.7.3
My files are note zipped

I tried to deactivate the Windows Security / Defender without any luck

The problem is still there, any solutions ?