Endurace token ninja bottom bracket problems

Hello guys,

I have a 2023 endurace cf7 with the token ninja thread fit bottom bracket (the plastic version).

I got it about 3 month ago and the bb seems to be a bit shitty, after a few rides I notice that the bottom bracket was creaking when I was descending and putting pressure on only one pedal when turning.

A few rides later it was pretty bad and I removed the crankset to check the bb. It was pretty loose and no grease between the frame and the bb. I added some thick grease and tightened it but the creaking came back after few rides.
I just tightened it a bit harder again (but it says 10-12nm and it is plastic so you cannot go too hard), I feel like the creaking is coming back.

I saw that some others had the same problem, did someone found a fix with this bb ? Would the aluminium version of the bb help ?