By utilizing the ps5 game boost function, it will be possible to play backward compatible "the first day", and with the help of the wise game booster, you can choose to increase the frame rate per second.

We talked about the loading speed of games on the PS5 and claimed that although they performed well on the PS4, players should "just wait" until they see them on more powerful gaming consoles.

Owners of the ps5 game boost will see an additional option to allow a frame rate of up to 60FPS, while the loading speed on PS4 is already good, just wait until they see them on PS5.

However, there are several other reasons why the support page clarifies some backward compatibility issues, stating:

Although many PS4 games can be played on the PS5 console, some of the functions available on the PS4 console may not be available on the PS5 console. In addition, some PS4 games may experience errors or unexpected behavior when played on PS5 consoles. Therefore, there may actually be issues when running the game, as PS5 effectively simulates PS4. We also confirmed the possibility of transferring game storage from PS4 to PS5. Previously, it was pointed out that "games with the same ability to transfer game storage between PS4 and PS5 versions are the decision of developers, and the titles of cross-generational games may vary.