>>53545912BDSP is absolutely horrible to play, the overworld is still designed as a grid but your character moves in 3D so you're constantly snagging on anything with an edge and misaligning your entry into doorways. There's a weird momentum system too that makes the Bicycle completely unusable.
Also every in-battle message has to be cleared by pressing A, even the "what will your Pokemon do next" message acts this way. Combine that with the affection system being tied to happiness, 50% of battles involve clearing repititive messages talking about dumb shit like your Pokemon looking back at you and nodding.
The original DPPt already had a reputation for being clunky and slow but the remakes managed to be even worse somehow.