Improve CPU inference time

[romeokienzler]

maximize CPU usage

[romeokienzler]

#370

[romeokienzler]

update from @Joao-L-S-Almeida :
task: 1.2 GB image inference in <= 5min, model: Prithvi V2 100M (tiled inference), seg. fault on CPU and GPU on CCC

atm 300 MB in 3 min -> in theory: 12 min 1.2 GB