Matomo 4.2.1 Database exponentially growing

We’re serving up almost 100K pageviews a day. Our Matomo version is 4.2.1 and DB Size is growing by almost 2GB each day.

Also DB crashed due to lack of space (For now we have increased the disk size but that is not a PERMAMNENT solution). Not sure how to prevent DB size from growing so exponentially. How can we get it under control ?

Is there a bug in Matomo Core OR
we need to take care ? (does not make much sense though)