Help w zip files than contain tweaks

I have a volt 2 5.1.1 and android i rooted with kingroot. I would like to apply tweaks to my phone how do i do that. I have downloaded L speed tweak i open the file n get 3 sub menus? I dont have teamwin reboot menu cause my phone not compatible but i have flashify if that helps please anyone please help me apply tweaks to phone.