First of all now you will have “Bulletproof Cheat” unlocked if you played Time Trial from the beginning. Make sure to enable that since it is going to help you to bypass enemies in this level, well at least most of them anyway. As for cheat weapon, choose the one you like the best.

After the battle, climb out of the cave and roll through the next hall.

At this point, try to jump across the pit on the first swing if possible.

When sliding here, you can jump twice and Lara will reach the hole faster. She will lose a little bit of health but all for some extra time.

Back in the trapped hallways, shoot while running toward the enemies. If you miss some of them, don't bother, just continue on.

After riding the elevator, rather than bothering with the grapple, just take a running jump from the elevator platform to the broken staircase.

You can ignore every enemy until you reach the upper level. Just roll past them.

Now all you just need to kill these two here and the final cutscene will start.

England Time Trial complete!

England Time Trial Part 1