How to use sport and ludicrous

I’m new so point me in the right direction. I have a few colors of bambu pla that I am learning the machine on.

I have tried a variety of prints and sliced them all with standard settings (tried .16 and point .2 lh)

I see a speed section in the slicer in mm/s but I have left those as is.

I have tried once it’s printing to change the speed via the printer screen or on the software.

All the prints fail. It almost looks as though the print head is hitting the print after a few minutes or seconds. Like the z jumped ot something. I have seen a video saying “stainless steel” as the description of what the prints look like

Last night I sliced a poop chute and let it run on standard settings all night. About 3/4 of the way through it did the same thing on all the walls. No speed increase.

Any idea how to address going on one of the higher speeds snd what settings I need to change.