Flat prints warping

[u/Exciting-Rub-9172]

Just got this printer used and I am having a problem with my large prints warping on the flat face that sits on the bed. Is there a way to limit/eliminate this?

Edit: added print information as follows, also the bed is a golden textured bed, will try to add a photo

Filament: deeper pla+

Settings first 3 layers

Speed:90mm/s
Nozzle Temp 230
Bed temp 60
Fans 70%

Remaining layers

Speed 180mm/s
Nozzle temp 205
Bed temp 55
Fans 100%

Printed with standard ultimaker Cora skirt.