The biggest issue is this "pentium 4 dual core" Pentium 4 is NOT dual-core and will not run NFS Rivals at high quality, and in fact does not meet the minimum requirements. Even if the game runs at all, it will not run well even at low settings with a Pentium 4.
This is the recommended specs, which means the ones that will run the game at good quality instead of just the minimums:
CPU: Intel Quad Core CPU, AMD Duo Core CPU
RAM: At least 8 GB
DISC DRIVE: CD/DVD ROM drive required for installation only
HARD DRIVE: At least 30 GB of free space
VIDEO: AMD Radeon 7870 3GB or better, NVIDIA GeForce GT660 3GB or better
You need a MUCH better CPU and a better card than the 7770 to run the game at high settings.