You can gain a lot of strength by exercising with your body weight. If you ever achieve the top spot on the machine, then you could use some "bands" on the total gym hooked at the bottom of the frame.
I highly recommend you check out this youtube channel of a man who uses all brands of slider benches. His workouts are great.
https://www.youtube.com/@SlidingBenchTrainer
Here is some information about this guy -
My name is Mike and I have been working in the fitness industry and higher education as a professor of Exercise Science for my whole adult life. This channel is all about sharing information on home fitness, "natural" bodybuilding, and basic health education. Since 2020, I've grown increasingly passionate about the promotion of using simple low-footprint equipment as an alternative to expensive and large equipment. The channel grew organically in sharing one of my favorite types of home gym equipment (we've dubbed sliding bench trainers) as they are an example of providing simple, effective, and efficient workouts that everyone can take advantage of. I'm grateful to everyone who lands on this channel. I sincerely hope that the content improves your quality of life, gives you more time to do what you love, increases performance, and makes adhering to physical fitness easy.
HTH