not much will help you there besides running the latest dev release. Your AMD CPU is low end, slow clock speeds, and an AMD CPU, meaning it has lousy IPC, which Dolphin cares about for emulation speed at stock settings.
I really doubt you'll run ZTP well even with the Hyrule speed hack enabled in AR codes. Skyward Sword, also no. Wind Waker... Maybe.
Also, you really won't be satisfied with anything less than 100% speed because we don't have timestretched audio in the official builds, meaning that if you go below 100%, it will VERY noticeably stutter and be miserable to play.
You can try the Ishiiruka build of dolphin which does have timestretched audio for sub 100% emulation speed, but I doubt it'll help your weak hardware much. Also, we won't support it, any questions you have will have to be directed to the Ishiiruka thread.
I really doubt you'll run ZTP well even with the Hyrule speed hack enabled in AR codes. Skyward Sword, also no. Wind Waker... Maybe.
Also, you really won't be satisfied with anything less than 100% speed because we don't have timestretched audio in the official builds, meaning that if you go below 100%, it will VERY noticeably stutter and be miserable to play.
You can try the Ishiiruka build of dolphin which does have timestretched audio for sub 100% emulation speed, but I doubt it'll help your weak hardware much. Also, we won't support it, any questions you have will have to be directed to the Ishiiruka thread.