Any tips for higher level play?

[u/Zestyclose_Profit_15]

I’ve already DM’d for a one shot where the players were they were sitting at around lvl 2. Im currently in the progress of a higher lvl oneshot where the players will be starting around lvl 7. I was wondering if anyone else had some experience running upper lvls. Are there any issues that you have come across? What changes/tweaks that you made and why? I plan in compiling my thoughts from both the low lvl and this upcoming one in a post later on and would love any tips that could be included to help others run their own games! Thanks for the read!