My hardcore world is experiencing brief lag moment around every minute. It lasts for half a second but is so persistent that ot makes the gameplay annoying.
Some times if freezes for an entire second or 2 seconds. However the freqience of this brief lags is too high.
My world is just 90 MB. It has increased so much in brief time even if i explored little. Just the area around spawnpoint.
My settings are:
6chunks simulation distance
18 chunk render
4 maps put on my walls and are 10% explored
True realism pack texture.
And i built very little. A portal and a 7x7 hole in the mountain as safehouse