To reduce usage of our BanubaSDK we can recommend you to configure render size.
Please find file 'EffectPlayerConfinguration' located in BanubaSdk.xcodeproj/BanubaSdk/EffectPlayer/Configuration/EffectPlayerConfinguration.swift
Here you change 'photoRenderSize' and 'videoRenderSize'
Changing this params may help you to reduce ram usage.