Issues editing converted raw files on Lightroom for iPad / CC

Hi. Have been using and loving NLP for a while now. From a practical perspective my workflow involves scanning using a Sony A7iii (and previously a Fuji XT3) and then converting the negative raws on my PC. I then export to jpeg and do final editing on my iPad using Lightroom CC.

I have to do this because the raw files which sync to CC come out way darker when viewed online or on the iPad but the JPEGs files are of course fine. The issue with jpeg is that all the bit depth is lost and when I print the files are rather underwhelming / suffer banding.

I am wondering if other people have this issue? I really would love to keep all my editing in raw but also use the iPad for at least some of the process as getting time on my shared home PC is tricky.

Thanks for any help,

Alex