Doing everything differently for every project isn’t going to help you move faster.
Redefining your methodology during a project is never going to work, that’s an outside-of-project task when no project will be affected.
Tweaks are good, but changes are not good.
Tweaks – “Let’s log these types of issues as bugs instead of tasks”
Changes – “Let’s stop using sub-tasks and stories and go to epics and tasks”
Your methodology might not do one thing, it doesn’t mean you need to throw it out.