Mona, why did the nuclear bomb wait for two seconds?

According to the query Genshin Impact game official website shows:

1, Mona needs to wait 2 seconds after casting Q to attack the enemy with fire damage, which is also the main principle of Mona's nuclear explosion.

2. Mona's opening skill is an instant skill, which will instantly cause damage and effect after being released. If you don't wait for two seconds, the enemy may avoid or use the skill counter before the skill is released.

3. Waiting for two seconds can make Mona's opening skills more stable and effective, so that players can better control the rhythm.