Solar Performance - difference between E / W

[FMSol]

Hi All.

 

New member, first post.

I recently had a 12 X Canadian Solar 540W panels installed in a 6E 6W configuration. Inverter is a Sunsynk 5kw.

The system has been running for about 3 weeks. I'm based in Cape Town, it's a clear sunny day today.

Tt 12:30pm I'm generating 2180W (9.2A) from East and 511W (2.1A) from West.

I'm not sure what the angle or azimuth is, installation is on a standard pitched roof.

The west string has always had a far lower current than East.

There's no shading on either string.

Is this acceptable or wiithin range for this time of the year?