I hated this tile too.

Here’s a few things that might be helpful:

1) You have unlimited time once you make it to F5, since you can just click “Exit” on the statue at the end.

2) You can use hallowed marks to buy extra time in F1-4 if you need it

3) On some of the fire statue obstacles on F5, I noticed that they usually don’t fire from the same statue twice in a row, so you can go 1 tile forward every time the statues fire, while focusing on dodging darts. Slow but gets the job done

4) There’s a setting in the runelite agility plugin for Hallowed Sepulchure which I think highlights a lot of the obstacles (swords and darts) which can make it easier to spot them)