When I've explored a fair amount of the map, similar to OP's world size (101.3Mb here), I experience similar performance issues.
Specs: Core i7 7700K 16Gb DDR4-3000 ASUS GTX 1070
There is no reason this PC should be pegged at 100% CPU while travelling, when the Java version works fine. There's a several second delay when porting from the overworld to the nether or back, and nothing but particles load during this time. I dropped my chunk viewing distance to 40 and particle distance to 60, with very little noticeable difference.
Justin Wood
When I've explored a fair amount of the map, similar to OP's world size (101.3Mb here), I experience similar performance issues.
Specs:
Core i7 7700K
16Gb DDR4-3000
ASUS GTX 1070
There is no reason this PC should be pegged at 100% CPU while travelling, when the Java version works fine. There's a several second delay when porting from the overworld to the nether or back, and nothing but particles load during this time. I dropped my chunk viewing distance to 40 and particle distance to 60, with very little noticeable difference.