In general I’d say you have a little over heating going on. I print ABS+ at 240 also.
I would see if I could get the bed temp a little lower after the first few layers.
Another thing you can do is to try and orient the model so the parts or areas that are most susceptible to over heating are facing toward the coolest section of the printer like a front door/cover that can be left open.
What is the layer height, nozzle size and extrusion width? Looks like there could be a slight over extrusion also.