Due to its nature Quincy can be fairly taxing on some devices. As mentioned before there a millions of calculations and of draw calls to perform. So, here are two things to keep in mind when working with Quincy.
Always have a good idea of what you are trying to do and limit the scope accordingly. Say, I want a metronome. For that purpose I don't need a large world. Or maybe I want to create something graphically impressive, but don't care too much about the music part. In that case I probably don't need all voices or rhythmic options in my module setting.
Go over these tips and just generally keep them in mind when working with Quincy. Most of it is just simple common sense.
The single most important optimization consideration in Quincy is grid size. It is also much easier sizing a Life world up than doing the opposite. Let's say for example you have a composition with an 16 x 16 grid size and did a lot of drawing in it. When sizing it up to a grid size of 32 x 32 your entire composition stays intact in the top, left corner of the display while the bottom right corners are expanded to their new dimesions. Going the opposite way you would lose all content beyond the coordinates 16 x 16 when sizing down.
|8 x 8||64|
|16 x 16||256|
|24 x 24||576|
|32 x 32||1024|
|40 x 40||1600|
|48 x 48||2304|
The various graphic effects in Quincy use processing power that can be released if necessary. Stars (Settings - Display Options - Stars) is the most processor intense display option that you may want to do without. Also quite demanding is Color Mash (Settings - Display Options - Color Mash) and lastly a high Generations setting (Life Settings - Miscellaneous - Generations) will affect overall performance on some devices.
Quincy's modules have three to four tone generators for you to pick from. In general it is good practice to always start out with only one generator (i.e. the quarter note generator in Pentrix), then switch over to the others one by one just to get to listen to them individually. For your final settings try to use only those generators you really need.
Quincy was designed with very few artificial limitations. That said, it is also a computationally very demanding program combining elements of motion graphics with intricate sound processing. Just something to keep in mind.