If its a Trinity Motherboard, I suggest you use the coolrunner rev c. I has stable boot times without any tuning. If its a Corona Motherboard I suggest you use the x360Ace v1 or the new one that was released the v2. I personally have the v1 installed on my corona v3 and the boot times are instant if not take up to 15 seconds to boot. If you decide to go with this chip you should use kynar wire and have the wires as short as you can, it improves your boot times! You can buy these chips off ebay, they are high quality chips and will work flawlessly so buy with confidence. I have use many of these chips for installs and they are perfect for fast boot times.
I would wait till CR4 or get yourself cr3 pro. Very hard to get rev c at the min and most are fake. Also x360pro v6 are good on trinity with good install.