Thanks for playing and congrats on capturing all the hearts!
Having the patterns increase in difficulty as you take photos was an idea at first, but submitting this was pretty close so it got cut out.
Also, a free-play mode sounds like a good idea, maybe as a reward for a 100% clear... and a reset option could also work well.
I can't notice any lag or delay on player movement, but it could be because of the camera code running this time around.
Viewing post in Tengoku 2.5: 恋愛弾 〜 Capture the Heart jam comments
For the free play point I’d argue to just let that be a thing from the get-go and let any scene you’ve had access to be playable there.
By the time I was trying to 100% the game, in order to quickly reach the stages I haven’t done yet I was replaying/skipping through already-seen date scenes (including finishing runs to put me back at the beginning) until I got a combination that gave me new stages.