Shifting in normal mode is designed to advance to the next gear that will keep RPMs within a fuel saving range. If there's no requirement for acceleration, it will jump gears to keep the RPMs down. You will notice this even more on a downgrade where there's even less of a load on the engine.
Tune experiences will be different with different types of tunes. A DMS tune will differ from other tunes of the same tuning company. Even with that, it will depend on what profile is in a specific drive mode as to how it will respond.
I'm currently working with the 93DMS tune. Even in sport mode alone, the shifting characteristics will vary depending on acceleration. When driving normally in sport, it will shift normally but at slightly higher RPMs than normal mode. If I give say, half throttle or more, the RPMs will stay above 2500RPM, even when I let off because it's tuned to stay in a spooled power band when driving spirited.
Because of different tunes, driving habits and conditions, shifting experiences are going to differ but all, most evidently by design.