In the settings/projector settings there are several opions under "scanrate" and "Vector display settings" It looks to me that your problem are related to the Anchors setting. Try to set the proper scanspeed that your projector/galvos are tuned for, and fiddle with the settings.
I bet someone will ask you to post a picture of the ILDA test image. It will tell the story of what to adjust.
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More projects than time available.
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Just got to love lasers!