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Slow interface updates potential reasons?

Gday there
Part studio with feature regen time around 2 seconds (76 features), takes around 8-10 seconds to update upon changing part studio configurations (loading icon go away). I think the regen time is respectable however real performance is far off that 2 seconds measurement
Generally less responsive interface, sometimes hang adding sketch elements etc.
Adjusting rollback bar even very late in the feature list can be a few seconds hang. For example add delete part feature as final feature and set rollback above it, hang for a few seconds
Not unique to this document but similar documents
Any particular reasons possible or is this roughly expected?
Chrome, 13ms latency, 100mbps connection
750,000 triangles
Perhaps to do with triangle count?
I appreciate the complexity of a cloud software like this and mainting performance given any condition is no small task, would just be interested to know any thoughts cheers
Comments
Hey Rhys. Can you post a pubic link to your document? Would be helpful to have a look.