Optimized out-of-order data fetching in a memory sub-system

A method comprising:sending, by a processing device, to a host system, a request to fetch data out of order;fetching, from the host system, a plurality of first data elements, wherein each first data element of the plurality of first data elements corresponds to a first die of a first set of dies of a memory device, wherein the memory device comprises the first set of dies and a second set of dies;storing the plurality of first data elements in a write buffer of the system;

• and
• writing the plurality of first data elements from the write buffer to the first die in parallel with performing a first folding operation by copying data from the first set of dies to the second set of dies of the memory device.

A non-transitory computer-readable storage medium comprising instructions that, when executed by a processing device, cause the processing device to perform operations comprising:sending, to a host system, a request to fetch data out of order;fetching, from the host system, a plurality of first data elements, wherein each first data element of the plurality of first data elements corresponds to a first die of a first set of dies of a memory device, wherein the memory device comprises the first set of dies and a second set of dies;storing the plurality of first data elements in a write buffer of the system;

• andwriting the plurality of first data elements from the write buffer to the first die in parallel with performing a first folding operation by copying data from the first set of dies to the second set of dies of the memory device.