I NEED HELP PLEASE!!

I got a single RX 470 MSI Armor edition, core clocked to 1400MHz and memory to 2145MHz, +50% limit power, Voltage parameteres on Auto. Using Wattman, drivers 19.8.1. Card reaches its max power (127w).
I use nicehash to mine, I get about 45mh/s mining Lyra2rev3, and sometimes it switches to phoenixminer and does 22mh/s, using above 100w. But then, after like 3-4 minutes, it caps at 90W and does only 11Mhs, so it auto-switches back to TeamRedMiner (lyra2rev3). Is this a bug or does the programs limits the card to 90W for some reason?

Note* Card reaches 127W with full load on other miners as well.