After all, there were more people on the opposite side; several handguns started firing and suppressed Mahong and Jimmy, who could only shoot back during the breaks. Compared to that, Jimmy's Glock provided somewhat better counter-suppression, and even though they both shot without aiming, Jimmy managed to injure a few people after completely emptying a magazine.
The few people who got injured now had absolutely no opportunity to escape; their position was near the corner of the restaurant without any back doors, and Mahong and Jimmy were completely blocking the direction of the main entrance. To leave, they'd need to take down Jimmy and Mahong first.
Jimmy pulled out his Python, locked onto several people with Heart Eye from behind the bar—they had only made simple barricades with tables and chairs to avoid being spotted by Jimmy and Mahong, but those tables and chairs couldn't stop bullets at all.