Internal memory (/dev/mmcblk0p1) space usage

I’ve found internal memory (/dev/mmcblk0p1/) of router is 89% full.

According to other similar threads here on the forum I deleted old schnappshots and usage is now 75%. It’s good or bad? I can’t assess it. What are your percentage usage on router?

Well on my home router I have just 9% used. At work I have around 10%. How can you fill that memory so much? I have just system and applications there. Anything else is on other drives.

80% in my case with /srv on other drive already.
What else would you recommend to move?