Our review unit of the Aquos S2 came with the Snapdragon 630 processor with 4GB of RAM and 64GB of storage. While we weren't expecting any miracles, the Aquos S2 managed to perform better than what we expected. Launching apps, switching between them, scrolling and such was all performed admirably and we weren't often left wanting for more performance.
Gaming performance too was alright as long as we didn't push the graphics settings to the max in some of the titles. All the games ran in 16:9 just like all the apps but in this case the area around the notch was just left blank.
As for other aspects of the performance, we liked the quick and accurate fingerprint reader that was located conveniently on the front. The network and wireless performance was also as one would expect it to be. Lastly, the single loudspeaker at the bottom was indeed quite loud but also tinny and best used at medium volume.