Why is the F1 25 progress bar pausing during track loads?

Loading the Monte Carlo track was a nightmare; the progress bar paused strangely, ruining my race rhythm. I tried forcing PCIe Gen4 mode in the BIOS, but this caused two memory checksum errors during boot, which was a reckless move. I then used the GamePP NVMe Queue Depth Configuration to increase depth to 128 and switched to the Extreme Performance power plan. Read speeds stabilized at 5100MB/s per CrystalDiskMark, loading time dropped from 12s to 5s per GamePP Timer, and temps stayed at 44-50℃ per HWiNFO.