I've driven 10th Gen 1.3 Gli with 205/65/R15, acceleration was almost the same as stock size. Not too much difference. A stock 195/65/R15 may beat 205/65/R15 in a drag race, though it's not that much of an issue as its very rare that you'll find yourself in such scenario. Furthermore, yours is 1.6 so difference would be hardly noticeable in terms of acceleration.
I was also tilted towards Advan dB, but after few members saying that Euro stars were much better on bumps, cat eyes and potholes I'm in serious confusion.
Do confirm about this issue of Advan dB before going for it.