ios - Earlgrey is slow when accessing NavBar/TabBar Items

Question

As EarlGrey runs in the process and there is no install/uninstall process involved as in XCUI test framework, I expected tests to run faster but I noticed it is almost the same speed as XCUI test framework. Any reasons?

It's very slow to get TabBar or NavBar items. How can I speed up the process?

I'm using this for TabBar elements to match

let tabButtonMatcher: GREYMatcher = grey_allOf([grey_accessibilityLabel("Something"), grey_accessibilityTrait(UIAccessibilityTraitButton),  grey_sufficientlyVisible()])
        EarlGrey.selectElement(with: tabButtonMatcher).perform(grey_tap()).assert(grey_sufficientlyVisible())

Similar for NavBar buttons also

    let navMatch: GREYMatcher = grey_allOf([grey_accessibilityID("Something"), grey_accessibilityTrait(UIAccessibilityTraitButton), grey_sufficientlyVisible()])
    EarlGrey.selectElement(with: navMatch).perform(grey_tap())