Pico Pi speed read data from SD card

[Dmkrd]

Good afternoon
I ask for advice...
My project is reading data from a file on an sd card. There are quite a lot of records in the file. Each time a new record is accessed and read, then the data is processed and the next record is read from the file. When reading the first records, the time to access the card and read data is about 4ms. when reading the 10,000th (this is not even the end of the file) record, this time is already about 420 ms. I understand that there are physical processes for accessing the next record, but I would like to reduce this time. I use the SD.h and SPI.h libraries, I took work with them from examples. if possible - please give advice on solving this problem, if possible...