iPad mini 4, what to do

I recently rediscovered I had this iPad mini 4, but as I was using it, it seemed slower than what I remember. I cut down the storage a bit it’s about half (43gb/128). Admittedly I know this is old tech and it’s somewhat outdated but are there any tips or ideas to get it to run as good as it can? It’s about 4 years old and runs iPadOS 15.5 any advice is appreciated!

I recently rediscovered I had this iPad mini 4, but as I was using it, it seemed slower than what I remember. I cut down the storage a bit it’s about half (43gb/128). Admittedly I know this is old tech and it’s somewhat outdated but are there any tips or ideas to get it to run as good as it can? It’s about 4 years old and runs iPadOS 15.5 any advice is appreciated!