Default Revival of a ten years old computer : how would you do it?

[hd99]

since few months im discovering openbsd ; as linux has been often recommended 
for windows's users with a very slow system, i guess that it's not that 
unadvised to use openbsd with a GUI for web browsing and little software (eg 
LO, gimp..)

i have tested "recent" openbsd releases, since 2022, and almost all of them are 
a bit slow with xfce/firefox etc.

i was wondering, for laptops range of 2013/16 years old, what would you 
recommmend them for a common web browsing using openbsd?

I thank you vm