After some calculations I concluded our server cloud had some power to spare. Thus I increased our view distance. You can now see 43% longer than before. We were previously running with view distance 7. Now we are running with view distance 10.

The screenshots below look that good because I used Optifine + the official MassiveCraft resource pack. You should too!

Before – view distance 7

renderdistance-seven

Now – view distance 10

renderdistance-ten