Program A runs for $30$ seconds, but $5$ seconds of that time is just waiting for memory. You decide to speed up the memory subsystem to improve execution time for program A$.$ Is it possible to achieve the following speedups $?$ Write YES$/$NO and briefly describe your reasoning.

$1\mathrm{.}1=$

$1\mathrm{.}15=1\mathrm{.}25=1\mathrm{.}30=$