I've never used a project manager and thought to myself "I want to switch because this is too slow". Even Jira. But I have thought to myself "It's too difficult to build a good workflow with this tool" or "It's too much work to surface good visibility".
This is not a first-person shooter. I don't care if it's 8ms vs 50ms or even 200ms; I want a product that indexes on being really great at visibility.
It's like indexing your buying decision for a minivan on whether it can do the quarter mile at 110MPH @ 12 seconds. Sure, I need enough power and acceleration, but just about any minivan on the market is going to do an acceptable and safe speed and if I'm shopping for a minivan, its 1/4 mile time is very low on the list. It's a minivan; how often am I drag racing in it? The buyer of the minivan has a purpose for buying the minivan (safety, comfort, space, cost, fuel economy, etc.) and trap speed is probably not one of them.
It's a task manager. Repeat that and see how silly it sounds to sweat a few ms interaction speed for a thing you should be touching only a few times a day max. I'm buying the tool that has the best visibility and requires the least amount of interaction from me to get the information I need.