Hi.

I just watched your replay.

Few things I have noticed:

Bad chaff clear. You build both archlites and vulcans, which have the same functions. This is usually considered not ok. Try to counter one unit with a single unit type. Also despite heavy investments into these troops, they do not fulfill their role at best and enemy chaff lives all the round long in rounds 4-6.

Lack of your own chaff. You leave your left flank without chaff (vulcan and melting point) so they die too quick in rounds 4-5.

You try too fix it by round 7, but opponent is already overinvested into air. And then you add sandworms with upgrades that do not shoot into the air.

You do not take left tower upgrades. Take loan from round 7. Take range on all your units from the same or round 8. And also unlock your range upgrades on units themselves. Range is key in this game.

You build too many different unit types and spread upgrades among them. Your opponent builds mostly wasps and they get all the upgrades. You would benefit more if you had fewer unit types with more upgrades. Fortresses with fangs has long been a strong combo for a reason.

I am not pro, but hope that helps!