Assist Please: Scale Menu on Mobile: DuraMenu

HI! Purchased DuraMenu 4-5 months ago (site is taking forever). I LOVE the functioning on Desktop! All the AWESOMENESS is not scaling to mobile (using 667 x 375 as predominate template). My webmaster says Menu is designed with “Bootstrap 3” and newer bootstraps are available. Is there someone that could upgrade “Duramenu” for me and/or provide guidance how to get ALL AWESOMENESS to scale on mobile? I am happy to pay for best solution.