Maybe this will give you some ideas.
https://www.aliexpress.com/w/wholesale-trx4-performance-upgrade.html?catId=0&initiative_id=SB_20230430102124&SearchText=trx4+performance+upgrade&spm=a2g0o.order_list.1000002.0
I have done these.
My TRX4 is mostly scale so I have not done a lot of...