fpga configuration questions

thanks for your reply!

i have read the pdf, but i still have some question:

1.difference between compressed and uncompressed

it seems like compressed image has a smaller size, so there are more space for UFM, but does it have any other affections to the fpga? will it have a slower configure speed?

2.difference between with memory initialization and with memory initialization

what is the memory initialization used for? in what condition should i need to use memory initialization

the pdf tells me there are many configuration modes in max10, but it does not tell me how to choose one configuration mode which is best for my design