Summary: 

When launched by a crossbow, it´s possible to notice that the Bedrock´s firework is slower and delayed compared to Java Edition, making it looks like artificial

Steps to Reproduce: 

1. Launch Minecraft Bedrock Edition
2. Fit a firework on a crossbow
3. Launch the firework

Observed Results:

When launched, the firework is slower and appears to come out of the jaw, unlike The Java Edition

Expected Results:

Bedrock Edition´s firework speed should be the same as Java Edition, as well as launch time

Screenshots/Videos Attached: Yes