I play with slower time mod. I already have an older mod from somewhere (don't recall) for slower skilling, but badges and hobby can both get maxed out pretty quickly.

Is there a general mod to slow? I find a simler90 mod that may slow badges, but description so fuddling I not sure entirely.

This thread rewrites simler90's mod descriptions: https://modthesims.info/t/683712

BADGE SPEED MOD; 2020/03/31

it takes zombies twice as long to increase badges
aliens increase badges 50 % faster than others (determined by skin or eyes)
for each learned toddler skill, the badge gain rate is increased a bit at all ages
combine with SKILL SPEED MOD (same thread)

SKILL SPEED MOD; UPDATE 2; 2020/03/31

it takes zombies twice as long to increase skills
aliens increase skills 50 % faster than others (determined by skin or eyes)
for each learned toddler skill, the skill gain rate is increased a bit at all ages
witches increase the witch skill slower (unless their Familiar that considers them Mine is on the lot, in which case they learn the witch skill faster)

SLOWER BADGE GAIN MOD; 2019/09/19

halves the rate at which Sims increase badges

So those three should slow everything down for you.