I create an almost empty ESP-IDF C project for ESP32-S3.
I added the following components:

idf_component_register(SRCS ${SOURCES}
                    INCLUDE_DIRS .
                    REQUIRES 
                        esp_driver_gpio 
                        esp_driver_uart 
                        esp_timer 
                        esp_event
                        esp_wifi
                        nvs_flash
                        driver 
                        fatfs
                        FT800-FT813-5.x)

and I just wrote few lines of code.
After compiling I see the IRAM memory is already full:

Memory Type Usage Summary                             
┏━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Memory Type/Section ┃ Used [bytes] ┃ Used [%] ┃ Remain [bytes] ┃ Total [bytes] ┃
┡━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ Flash Code          │       149695 │     1.78 │        8238881 │       8388576 │
│    .text            │       149695 │     1.78 │                │               │
│ DIRAM               │        74112 │    21.43 │         271744 │        345856 │
│    .text            │        55651 │    16.09 │                │               │
│    .data            │        11296 │     3.27 │                │               │
│    .bss             │         7008 │     2.03 │                │               │
│ Flash Data          │        67180 │      0.2 │       33487220 │      33554400 │
│    .rodata          │        66924 │      0.2 │                │               │
│    .appdesc         │          256 │      0.0 │                │               │
│ IRAM                │        16383 │    99.99 │              1 │         16384 │
│    .text            │        15356 │    93.73 │                │               │
│    .vectors         │         1027 │     6.27 │                │               │
│ RTC FAST            │           40 │     0.49 │           8152 │          8192 │
│    .rtc_reserved    │           24 │     0.29 │                │               │
└─────────────────────┴──────────────┴──────────┴────────────────┴───────────────┘
Total image size: 300205 bytes (.bin may be padded larger)

I’m reading here what IRAM is and here how to minimize its usage.
From the project configuration I removed all the IRAM options (I left enabled the master SPI only).

As far as I know, ESP32 have the CONFIG_ESP_SYSTEM_ESP32_SRAM1_REGION_AS_IRAM parameter to change the IRAM size, but ESP32-S3 has not.

What are the consequences of having the IRAM full with almost no code written? Are there other ways to reduce its usage (or increase its size)?