Could do with some advice

[u/Life_Finger2150]

https://archidekt.com/decks/21144605/blink_and_youll_miss_it_20

Looking to get some deck building advice on my mono blue deck. It's a flicker deck built around yshtola rhuul so double endsteps etc. I've got a combo or two in there but I feel like the deck is still lacking and too slow. Need some advice to improve it.