What illuminarti said. I thought he was full of it until I tried his technique the first time. Amazing. Your next problem will getting the damn parts off the bed.
Regarding "the coral look" - that sounds like underextrusion. If you are going to be printing that fast (which is a good goal!) you need to at least raise your printing temp to allow that plastic to flow! But you will likely have problems on parts with gaps in it (stringing) if the temp is too high.
Other things that help with warping/lifting is rounded corners - makes a huge difference. Or checking that box in Cura that says "add raft". Or get a heated bed but getting a heated bed to just make PLA stick better is a waste of money when isoproply alcohol works better and more cheaply.
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illuminarti 18
Put down fresh blue tape, and rub it down with isopropyl alcohol before you start printing. That should help with the adhesion of the print to the tape. The key is to get the tape stuck well enough to the bed, and the print stuck well enough to the tape, that it can resist the warping forces while it cools. You may find that the print ends up very well stuck to the tape, so the tape tears when you take it off. If that happens, soak the bottom of the print in a little more alcohol for 5-10 mins, and it will lift right off.
Also, I would try turning off the fans totally for the print.
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