Open Beta lag spike

Hi Im running into a problem where my FPS went down sudendly with no reason that I can see, first days it was OK (07 & 08 of Aug) but from yesterday I started having this issue, I have tried to lower the graphics and play with the game settings but its not working, Im running a CPU I7 13TH GEN, a 4070TI, 4TB SSD M2 storage and 32 GB of Ram, here is an image of the issue with the game tools: