A few pointers:
Newer versions of Bitcoin Core are usually more efficient in syncing than older versions.
You're going to download 600+ GB of data. If you're doing that on mobile data, 12 GB in 30 minutes isn't even that bad.
The older blocks are much easier to verify than the newer blocks. So in the start, you're probably limited by bandwidth. Later on, your RAM or SSD may become the limiting factor and slow it down further.
If you can't spare 600+ GB of bandwidth, you're better off with a light wallet than Bitcoin Core. Syncing in 1 or 2 days isn't bad at all.