This is an oval shaped little vase meant for racing, ie the better your machine's cooling system the faster you can get around the oval. My stock Ultimaker can run this at 40 mm/s without defects.
Defects show up on the side away from the fan at 50 mm/s and on the side towards the fan at 70 mm/s.
It will be interesting to see what cooling system mods work best to get higher speeds.
Cura Settings for PLA racing on the Ultimaker:
under tools: switch to full settings
under the basic tab:
Layer height: 0.2 mm
Shell thickness: 0.4 mm
Bottom thickness: 0.4 mm
Print speed: 40 mm/s to qualify and then as fast as you can
Printing temp: 210 C
under the advanced tab:
minimal layer time: SET to 0 seconds
under expert settings:
uncheck solid infill top
check solid infill bottom