Hi Daulet,
1-You could also try by increasing pageable cache from the server manager option.
As per my knowledge we can not use InMemory in Table_Comparison transform.
2- check if sufficient space is available into installation(BODS) directory.
3 - if you feel that it is because of network bandwidth then you can decrease the value for table option(array fetch size and rows per commit)
Please try and update the thread.
Regards,
Shiva Sahu