There's no way anyone can get stuck at 1100 using a chess engine. Not even in rapid are there enough cheaters to cause you to stagnate in any rating by playing against cheaters.
In my experience, it's normal to encounter cheaters when you reach 2100 in rapid, but they're not enough to slow your rise. The only way to stagnate at a certain rating is if that's your level or if you're playing at a level that exceeds your mental and physical stamina. If you truly believe you're stronger than your current rating, don't play when you're tired, hungry, thirsty, or in a noisy environment.
If you want to achieve a higher rating, consider improving your chess level. Also, consider your physical health, as this could be a major hindrance when trying to improve. Do some research on what nutrition is best for improving and maintaining better mental health and better utilizing your mental abilities. If you want to improve yourself, you can share your current training here and/or ask for advice on how to train.
If you prefer, find a coach. If you do, I recommend reading endgame books at the same time. When endgame books aren't enough, it's a good idea to consider an endgame coach (at a very high level). Consider your available time for chess training; don't sacrifice your sleep. If you don't have much time for physical activity, try routines that last 15 to 5 minutes; squats and push-ups may be sufficient
Way to many sand baggers, smurfs, cheats here. How anyone thinks the sub fee is worth it is amazing.