Lighter Guage Strings for 75yr old Gibson

Quick comparison between string guages on 1949 Gibson LG2
- a small bodied version of the J45, definitely not a Dreadnaught, yet
I've played her hard in loud jams and thought heavier strings would help,
but I'm experimenting with lighter guages, as it feels like the top of the guitar
is under too much tension, and maybe lighter strings will allow her to sing
more sweetly...
Strings compared are both John Pearse 80/20 Bronze
160SL "Slightly Light" .011 .015 .022 .030 .040 .050
and
200L Light .012 .016 .024 .032 .042 .053