Learn Cloud - Those are the Hard limits for sure and cannot be increased ! Basically "Standard sku cores (CPUs) per region per subscription" is by default 100. If you increase that quota per region per subscription - you will be able to create more container instances - it will not have any effect on the creation of container Instance per region.
For example , if the "Canada Central" region supports creation of container instance with 4 Max CPU - even though you increase that "Standard sku cores (CPUs) per region per subscription" - the single container instance creation cannot go beyond 4 Max CPU cores for that region ! That's the hard limit for Azure Container Instance per region !! To answer your query , it will not impact CPU/Memory !
Regards,
Shiva.