Problems with Galvo configuration

I’ve got a Galvo fibre laser that i have been using with EZCAD. We use lightburn on a CO2 machine and have just decided to buy another license for the galvo fibre machine.

I’m having uses with the configuration. I copied everything from EZCAD to lightburn but the bulge correct setting does seem to completely correct everything. I’ve set to the max correction but its still not quite right.

Anyone else have this problem?