You're Playing International WRONG
...well... maybe not "WRONG", but I bet there's an amazing International Team rotation you aren't aware of.
I recently watched a video from YT content creator jamiekb9v about Kazuha's "3rd skill - the semi-hold E", and it made me realize this could be huge for Childe International.
Basically, you can use 3 Kazuha skills in a rotation (and fluidly I might add) using this technique.
The rotation I like to use is:
Childe E, Bennett Q, Kazuha "semi-hold E" Q, Xiangling E Q, Childe Ranged Q, Kazuha E (whatever variation you want), Childe NA and CA for ~9 secs (lines up pretty closely to Pyronado ending now on C4 Xiangling), Kazuha E, Bennet E funnel into XL.
I made a video showing/explaining it in action, and also explained how the gauge units change with each attack. (Recently decided to dabble with vids)
Edit: Forgot to mention that lowering team ER reqs also gives more value to Childe C1 since you can cut out extra batterying from Bennett to XL
Edit2: Even better rotation for energy concerns: Childe E, Bennett Q, Kazuha "semi-hold E" Q, Bennet E into Xiangling Q E, Childe Ranged Q, Kazuha E (whatever variation you want), Childe NA and CA for ~9 secs (lines up pretty closely to Pyronado ending now on C4 Xiangling), Kazuha E, Bennet E funnel into XL.