FC26 stuck at 4-5 fps, and slow-gameplay issue

I'm experiencing FPS issue while playing FC26 normally. I enter the game, start the match (kick-off), and after a while (sometimes about 10 or 30 minutes), I encounter a problem shown in the attached video. The in-match gameplay suddenly slows down. I'm forced to play the game in slow motion. My system requirements are suitable for playing FC26. If you wish, I can explain and provide you with all the details, or send you any files you want. When I pause the match, the menu screen is okay, no problem. But when I returned the game the issue continues. Furthermore, sometimes the menu screen stucks at 4-5 fps too. It happens randomly. The whole game runs at 5 fps. I can provide a few videos too if the attachment is not fulfill your comprehension.