Understanding timing constraints in timing analyzer

A number of things here but the main thing is that you need to fully constrain the design first before you can rely on any timing reports. This training discusses the creation of I/O timing constraints: https://learning.intel.com/Developer/learn/courses/841/intelr-quartusr-prime-pro-software-timing-analysis-part-4-io-interfaces

Once your design is fully constrained, then you can run setup and hold summary reports to verify whether the design meets timing.