Evolution doesn't always mean an animal becomes objectively better. There are a lot of factors in play.

Research Sources:
Averof M, Cohen SM. Evolutionary origin of insect wings from ancestral gills. Nature. 1997 Feb 13;385(6617):62730. doi: 10.1038/385627a0. PMID: 9024659.
Deora T, Singh AK, Sane SP. Biomechanical basis of wing and haltere coordination in flies. Proc Natl Acad Sci U S A. 2015 Feb 3;112(5):14816. doi: 10.1073/pnas.1412279112. Epub 2015 Jan 20. PMID: 25605915; PMCID: PMC4321282.

Image Sources:
https://www.britannica.com/animal/insect
https://www.marylandzoo.org/animal/se...
https://academy.allaboutbirds.org/cou...
https://www.smithsonianmag.com/scienc...
https://www.livescience.com/24071pte...
https://ptes.org/campaigns/stagbeetl...
https://www.planetnatural.com/stagbe...
https://genent.cals.ncsu.edu/insecti...
https://senecaparkzoo.org/mombasagol...
https://news.osu.edu/fossilistheol...
https://critter.science/thefascinati...
https://www.sciencelearn.org.nz/resou...
https://newsroom.ucla.edu/releases/wh...

Video Sources:
FD Wildlife Ep.5: Just Insects
Real Science The Insane Biology of: The Dragonfly
Monster Bug Wars TV Series
Walking with Monsters Documentary
Backwater Reptiles Whip Spider AKA Tailless Whip Scorpion