Chance at Cambridge Economics Interview with 43 IB but 6 on TMUA

Hi, I am applying to Cambridge for 2025 start, I got predicted a 43 for IB, however, I am struggling to achieve above a 7 on my TMUA practices. Lets say the worst happens and I get a 6 for the OCTOBER TMUA, will Cambridge take in consideration of my 43 IB score or am I automatically cut off and will not receive an interview chance because of the low TMUA score.
If I got an interview chance and did fairly well on it, would my admission chances be lower due to the low TMUA score?
PS Applying to peterhouse L100 Economics.
Thank you